diff --git a/Moose Development/Moose/Ops/CTLD.lua b/Moose Development/Moose/Ops/CTLD.lua
index 067d28f37..fe760cc83 100644
--- a/Moose Development/Moose/Ops/CTLD.lua	
+++ b/Moose Development/Moose/Ops/CTLD.lua	
@@ -2355,7 +2355,7 @@ function CTLD:_LoadTroops(Group, Unit, Cargotype, Inject)
     loaded.Troopsloaded = loaded.Troopsloaded + troopsize
     table.insert(loaded.Cargo,loadcargotype)
     self.Loaded_Cargo[unitname] = loaded
-    self:_SendMessage("Troops boarded!", 10, false, Group)
+    self:_SendMessage(string.format("%s boarded!", cgoname), 10, false, Group)
     self:_RefreshDropTroopsMenu(Group,Unit)
     self:__TroopsPickedUp(1,Group, Unit, Cargotype)
     self:_UpdateUnitCargoMass(Unit)
@@ -2589,8 +2589,8 @@ end
           loaded.Troopsloaded = loaded.Troopsloaded + troopsize
           table.insert(loaded.Cargo,loadcargotype)
           self.Loaded_Cargo[unitname] = loaded
-          self:ScheduleOnce(running,self._SendMessage,self,"Troops boarded!", 10, false, Group)
-          self:_SendMessage("Troops boarding!", 10, false, Group)
+          self:ScheduleOnce(running, self._SendMessage, self, string.format("%s boarded!", Cargotype.Name), 10, false, Group)
+          self:_SendMessage(string.format("%s boarding!", Cargotype.Name), 10, false, Group)
           self:_RefreshDropTroopsMenu(Group,Unit)
           self:_UpdateUnitCargoMass(Unit)
           local groupname = nearestGroup:GetName()
@@ -3099,23 +3099,21 @@ function CTLD:_LoadCratesNearby(Group, Unit)
   self:T(self.lid .. " _LoadCratesNearby")
     -- load crates into heli
   local group = Group -- Wrapper.Group#GROUP
-  local unit = Unit -- Wrapper.Unit#UNIT
+  local unit = Unit  -- Wrapper.Unit#UNIT
   local unitname = unit:GetName()
-  -- see if this heli can load crates
+    -- see if this heli can load crates
   local unittype = unit:GetTypeName()
   local capabilities = self:_GetUnitCapabilities(Unit) -- #CTLD.UnitTypeCapabilities
-  --local capabilities = self.UnitTypeCapabilities[unittype] -- #CTLD.UnitTypeCapabilities
   local cancrates = capabilities.crates -- #boolean
   local cratelimit = capabilities.cratelimit -- #number
   local grounded = not self:IsUnitInAir(Unit)
   local canhoverload = self:CanHoverLoad(Unit)
-  
+
   -- Door check
   if self.pilotmustopendoors and not UTILS.IsLoadingDoorOpen(Unit:GetName()) then
     self:_SendMessage("You need to open the door(s) to load cargo!", 10, false, Group)
-    if not self.debug then return self end 
+    if not self.debug then return self end
   end
- 
   --- cases -------------------------------
   -- Chopper can\'t do crates - bark & return
   -- Chopper can do crates -
@@ -3123,77 +3121,97 @@ function CTLD:_LoadCratesNearby(Group, Unit)
   -- --> hover or land if not forcedhover
   -----------------------------------------
   if not cancrates then
-    self:_SendMessage("Sorry this chopper cannot carry crates!", 10, false, Group) 
+    self:_SendMessage("Sorry this chopper cannot carry crates!", 10, false, Group)
   elseif self.forcehoverload and not canhoverload then
-    self:_SendMessage("Hover over the crates to pick them up!", 10, false, Group) 
+    self:_SendMessage("Hover over the crates to pick them up!", 10, false, Group)
   elseif not grounded and not canhoverload then
-    self:_SendMessage("Land or hover over the crates to pick them up!", 10, false, Group) 
+    self:_SendMessage("Land or hover over the crates to pick them up!", 10, false, Group)
   else
-     -- have we loaded stuff already?
+    -- have we loaded stuff already?
     local numberonboard = 0
-    local massonboard = 0
-    local loaded = {}
+    local loaded        = {}
     if self.Loaded_Cargo[unitname] then
-      loaded = self.Loaded_Cargo[unitname] -- #CTLD.LoadedCargo
-      numberonboard = loaded.Cratesloaded or 0
-      massonboard = self:_GetUnitCargoMass(Unit)
+      loaded         = self.Loaded_Cargo[unitname] -- #CTLD.LoadedCargo
+      numberonboard  = loaded.Cratesloaded or 0
     else
-      loaded = {} -- #CTLD.LoadedCargo
+      loaded = {}
       loaded.Troopsloaded = 0
       loaded.Cratesloaded = 0
       loaded.Cargo = {}
     end
+
     -- get nearby crates
-    local finddist = self.CrateDistance or 35
-    local nearcrates,number = self:_FindCratesNearby(Group,Unit,finddist,false,false) -- #table
+    local finddist           = self.CrateDistance or 35
+    local nearcrates, number = self:_FindCratesNearby(Group,Unit,finddist,false,false)
     self:T(self.lid .. " Crates found: " .. number)
+
     if number == 0 and self.hoverautoloading then
-      return self -- exit
+      return self
     elseif number == 0 then
-      self:_SendMessage("Sorry, no loadable crates nearby or max cargo weight reached!", 10, false, Group) 
-      return self -- exit
+      self:_SendMessage("Sorry, no loadable crates nearby or max cargo weight reached!", 10, false, Group)
+      return self
     elseif numberonboard == cratelimit then
-      self:_SendMessage("Sorry, we are fully loaded!", 10, false, Group) 
-      return self -- exit
+      self:_SendMessage("Sorry, we are fully loaded!", 10, false, Group)
+      return self
     else
-      -- go through crates and load
       local capacity = cratelimit - numberonboard
       local crateidsloaded = {}
-      local loops = 0
-      while loaded.Cratesloaded < cratelimit and loops < number do
-        loops = loops + 1
-        local crateind = 0
-        -- get crate with largest index
-        for _ind,_crate in pairs (nearcrates) do
-          if self.allowcratepickupagain then
-            if _crate:GetID() > crateind and _crate.Positionable ~= nil then
-              crateind = _crate:GetID()
-            end
+      local crateMap = {}
+
+      for _, cObj in pairs(nearcrates) do
+        if not cObj:HasMoved() or self.allowcratepickupagain then
+          local cName = cObj:GetName() or "Unknown"
+          crateMap[cName] = crateMap[cName] or {}
+          table.insert(crateMap[cName], cObj)
+        end
+      end
+      for cName, crateList in pairs(crateMap) do
+        if capacity <= 0 then break end
+
+        table.sort(crateList, function(a, b) return a:GetID() > b:GetID() end)
+        local needed = crateList[1]:GetCratesNeeded() or 1
+        local totalFound = #crateList
+        local loadedHere = 0
+
+        while loaded.Cratesloaded < cratelimit and loadedHere < totalFound do
+          loadedHere = loadedHere + 1
+          local crate = crateList[loadedHere]
+          if crate and crate.Positionable then
+            loaded.Cratesloaded = loaded.Cratesloaded + 1
+            crate:SetHasMoved(true)
+            crate:SetWasDropped(false)
+            table.insert(loaded.Cargo, crate)
+            table.insert(crateidsloaded, crate:GetID())
+            -- destroy crate
+            crate:GetPositionable():Destroy(false)
+            crate.Positionable = nil
           else
-            if not _crate:HasMoved() and not _crate:WasDropped() and _crate:GetID() > crateind then
-              crateind = _crate:GetID()
-            end
+            loadedHere = loadedHere - 1
+            break
           end
         end
-        -- load one if we found one
-        if crateind > 0 then
-          local crate = nearcrates[crateind] -- #CTLD_CARGO
-          loaded.Cratesloaded = loaded.Cratesloaded + 1
-          crate:SetHasMoved(true)
-          crate:SetWasDropped(false)
-          table.insert(loaded.Cargo, crate)
-          table.insert(crateidsloaded,crate:GetID())
-          -- destroy crate
-          crate:GetPositionable():Destroy(false)
-          crate.Positionable = nil
-          self:_SendMessage(string.format("Crate ID %d for %s loaded!",crate:GetID(),crate:GetName()), 10, false, Group)
-          table.remove(nearcrates,crate:GetID())
-          self:__CratesPickedUp(1, Group, Unit, crate)
+
+        capacity = cratelimit - loaded.Cratesloaded
+        if loadedHere > 0 then
+          local fullSets = math.floor(loadedHere / needed)
+          local leftover = loadedHere % needed
+
+          if needed > 1 then
+            if fullSets > 0 and leftover == 0 then
+              self:_SendMessage(string.format("Loaded %d %s.", fullSets, cName), 10, false, Group)
+            elseif fullSets > 0 and leftover > 0 then
+              self:_SendMessage(string.format("Loaded %d %s(s), with %d leftover crate(s).", fullSets, cName, leftover), 10, false, Group)
+            else
+              self:_SendMessage(string.format("Loaded only %d/%d crate(s) of %s.", loadedHere, needed, cName), 15, false, Group)
+            end
+          else
+            self:_SendMessage(string.format("Loaded %d %s(s).", loadedHere, cName), 10, false, Group)
+          end
         end
       end
       self.Loaded_Cargo[unitname] = loaded
-      self:_UpdateUnitCargoMass(Unit) 
-      self:_RefreshDropCratesMenu(Group,Unit)
+      self:_UpdateUnitCargoMass(Unit)
+      self:_RefreshDropCratesMenu(Group, Unit)
       -- clean up real world crates
       self:_CleanupTrackedCrates(crateidsloaded)
     end
@@ -3201,6 +3219,7 @@ function CTLD:_LoadCratesNearby(Group, Unit)
   return self
 end
 
+
 --- (Internal) Function to clean up tracked cargo crates
 -- @param #CTLD self
 -- @param #list crateIdsToRemove Table of IDs
@@ -3858,6 +3877,7 @@ end
 -- @param #CTLD self
 -- @param Wrapper.Group#GROUP Group
 -- @param Wrapper.Unit#UNIT Unit
+
 function CTLD:_PackCratesNearby(Group, Unit)
   self:T(self.lid .. " _PackCratesNearby")
   -----------------------------------------
@@ -4294,7 +4314,7 @@ function CTLD:_RefreshF10Menus()
               end
               for name, info in pairs(cargoByName) do
                 local line = string.format("Drop %s (%d/%d)", name, info.count, info.needed)
-                MENU_GROUP_COMMAND:New(_group, line, dropCratesMenu, self._UnloadSingleCrate, self, _group, _unit, name)
+                MENU_GROUP_COMMAND:New(_group, line, dropCratesMenu, self._UnloadSingleCrateSet, self, _group, _unit, name)
               end
             end
 
@@ -4344,22 +4364,52 @@ end
 -- @param #CTLD self
 -- @param Wrapper.Group#GROUP Group The calling group.
 -- @param Wrapper.Unit#UNIT Unit The calling unit.
--- @param #string CrateName The name of the crate to unload
+-- @param #string setIndex The name of the crate to unload
 -- @return #CTLD self
-function CTLD:_UnloadSingleCrate(Group, Unit, CrateName)
+function CTLD:_UnloadSingleCrateSet(Group, Unit, setIndex)
+  self:T(self.lid .. " _UnloadSingleCrateSet")
+
+  -- Check if we are in a drop zone (unless we drop anywhere)
   if not self.dropcratesanywhere then
     local inzone, zoneName, zone, distance = self:IsUnitInZone(Unit, CTLD.CargoZoneType.DROP)
     if not inzone then
       self:_SendMessage("You are not close enough to a drop zone!", 10, false, Group)
-      if not self.debug then
-        return self
+      if not self.debug then 
+        return self 
       end
     end
   end
+
+  -- Check if doors must be open
   if self.pilotmustopendoors and not UTILS.IsLoadingDoorOpen(Unit:GetName()) then
     self:_SendMessage("You need to open the door(s) to drop cargo!", 10, false, Group)
     if not self.debug then return self end
   end
+
+  -- Check if the crate grouping data is available
+  local unitName = Unit:GetName()
+  if not self.CrateGroupList or not self.CrateGroupList[unitName] then
+    self:_SendMessage("No crate groups found for this unit!", 10, false, Group)
+    if not self.debug then return self end
+    return self
+  end
+
+  -- Find the selected chunk/set by index
+  local chunk = self.CrateGroupList[unitName][setIndex]
+  if not chunk then
+    self:_SendMessage("No crate set found or index invalid!", 10, false, Group)
+    if not self.debug then return self end
+    return self
+  end
+
+  -- Check if the chunk is empty
+  if #chunk == 0 then
+    self:_SendMessage("No crate found in that set!", 10, false, Group)
+    if not self.debug then return self end
+    return self
+  end
+
+  -- Check hover/airdrop/landed logic
   local grounded = not self:IsUnitInAir(Unit)
   local hoverunload = self:IsCorrectHover(Unit)
   local isHerc = self:IsHercules(Unit)
@@ -4373,64 +4423,51 @@ function CTLD:_UnloadSingleCrate(Group, Unit, CrateName)
     else
       self:_SendMessage("Nothing loaded or not hovering within parameters!", 10, false, Group)
     end
+    if not self.debug then return self end
     return self
   end
-  local unitName = Unit:GetName()
+
+  -- Get the first crate from this set
+  local crateObj = chunk[1]
+  if not crateObj then
+    self:_SendMessage("No crate found in that set!", 10, false, Group)
+    if not self.debug then return self end
+    return self
+  end
+
+  -- Perform the actual "drop" spawn
+  local needed = crateObj:GetCratesNeeded() or 1
+  self:_GetCrates(Group, Unit, crateObj, #chunk, true)
+
+  -- Mark all crates in the chunk as dropped
+  for _, cObj in ipairs(chunk) do
+    cObj:SetWasDropped(true)
+    cObj:SetHasMoved(true)
+  end
+
+  -- Rebuild the cargo list to remove the dropped crates
   local loadedData = self.Loaded_Cargo[unitName]
-  if not loadedData or not loadedData.Cargo then
-    self:_SendMessage("Nothing loaded!", 10, false, Group)
-    return self
-  end
-  local cargoList = loadedData.Cargo
-  local needed = 0
-  for _, cObj in ipairs(cargoList) do
-    if cObj:GetName() == CrateName and not cObj:WasDropped() then
-      needed = cObj:GetCratesNeeded() or 1
-      break
-    end
-  end
-  if needed < 1 then
-    self:_SendMessage(string.format("No %s crate found or already dropped!", CrateName), 10, false, Group)
-    return self
-  end
-  local matched = {}
-  for _, cObj in ipairs(cargoList) do
-    local t = cObj:GetType()
-    if t ~= CTLD_CARGO.Enum.TROOPS
-       and t ~= CTLD_CARGO.Enum.ENGINEERS
-       and t ~= CTLD_CARGO.Enum.GCLOADABLE
-       and (not cObj:WasDropped() or self.allowcratepickupagain)
-       and cObj:GetName() == CrateName
-    then
-      table.insert(matched, cObj)
-    end
-  end
-  local crateToUse = matched[1]
-  self:_GetCrates(Group, Unit, crateToUse, needed, true)
-  local used = 0
-  for _, cObj in ipairs(matched) do
-    if used < needed then
-      used = used + 1
-      cObj:SetWasDropped(true)
-      cObj:SetHasMoved(true)
-    end
-  end
-  local newList = {}
-  local newCratesCount = 0
-  for _, cObj in ipairs(cargoList) do
-    if not cObj:WasDropped() then
-      table.insert(newList, cObj)
-      local ct = cObj:GetType()
-      if ct ~= CTLD_CARGO.Enum.TROOPS and ct ~= CTLD_CARGO.Enum.ENGINEERS then
-        newCratesCount = newCratesCount + 1
+  if loadedData and loadedData.Cargo then
+    local newList = {}
+    local newCratesCount = 0
+    for _, cObj in ipairs(loadedData.Cargo) do
+      if not cObj:WasDropped() then
+        table.insert(newList, cObj)
+        local ct = cObj:GetType()
+        if ct ~= CTLD_CARGO.Enum.TROOPS and ct ~= CTLD_CARGO.Enum.ENGINEERS then
+          newCratesCount = newCratesCount + 1
+        end
       end
     end
+    loadedData.Cargo = newList
+    loadedData.Cratesloaded = newCratesCount
+    self.Loaded_Cargo[unitName] = loadedData
   end
-  loadedData.Cargo = newList
-  loadedData.Cratesloaded = newCratesCount
-  self.Loaded_Cargo[unitName] = loadedData
+
+  -- Update cargo mass, refresh menu
   self:_UpdateUnitCargoMass(Unit)
-  self:_RefreshDropCratesMenu(Group,Unit)
+  self:_RefreshDropCratesMenu(Group, Unit)
+
   return self
 end
 
@@ -4445,29 +4482,67 @@ function CTLD:_RefreshDropCratesMenu(Group, Unit)
   if not theGroup.CTLDTopmenu then return end
   local topCrates = theGroup.MyTopCratesMenu
   if not topCrates then return end
-  if topCrates.DropCratesMenu then topCrates.DropCratesMenu:Remove() end
+  if topCrates.DropCratesMenu then
+    topCrates.DropCratesMenu:Remove()
+  end
   local dropCratesMenu = MENU_GROUP:New(theGroup, "Drop Crates", topCrates)
   topCrates.DropCratesMenu = dropCratesMenu
   MENU_GROUP_COMMAND:New(theGroup, "Drop ALL crates", dropCratesMenu, self._UnloadCrates, self, theGroup, theUnit)
+
   local loadedData = self.Loaded_Cargo[Unit:GetName()]
-  if loadedData and loadedData.Cargo then
-    local cargoByName = {}
-    for _, cargoObj in pairs(loadedData.Cargo) do
-      if cargoObj and not cargoObj:WasDropped() then
-        local ctype = cargoObj:GetType()
-        if ctype ~= CTLD_CARGO.Enum.TROOPS and ctype ~= CTLD_CARGO.Enum.ENGINEERS and ctype ~= CTLD_CARGO.Enum.GCLOADABLE then
-          local cName = cargoObj:GetName()
-          local needed = cargoObj:GetCratesNeeded() or 1
-          if not cargoByName[cName] then
-            cargoByName[cName] = {count = 0, needed = needed}
-          end
-          cargoByName[cName].count = cargoByName[cName].count + 1
-        end
+  if not loadedData or not loadedData.Cargo then return end
+
+  local cargoByName = {}
+  for _, cObj in ipairs(loadedData.Cargo) do
+    if cObj and not cObj:WasDropped() then
+      local cType = cObj:GetType()
+      if cType ~= CTLD_CARGO.Enum.TROOPS and cType ~= CTLD_CARGO.Enum.ENGINEERS and cType ~= CTLD_CARGO.Enum.GCLOADABLE then
+        local name = cObj:GetName() or "Unknown"
+        cargoByName[name] = cargoByName[name] or {}
+        table.insert(cargoByName[name], cObj)
       end
     end
-    for name, info in pairs(cargoByName) do
-      local line = string.format("Drop %s (%d/%d)", name, info.count, info.needed)
-      MENU_GROUP_COMMAND:New(theGroup, line, dropCratesMenu, self._UnloadSingleCrate, self, theGroup, theUnit, name)
+  end
+
+  self.CrateGroupList = self.CrateGroupList or {}
+  self.CrateGroupList[Unit:GetName()] = {}
+
+  -- A single global line index for ALL crate names
+  local lineIndex = 1
+
+  for cName, list in pairs(cargoByName) do
+    local needed = list[1]:GetCratesNeeded() or 1
+    table.sort(list, function(a,b) return a:GetID() < b:GetID() end)
+
+    local i = 1
+    while i <= #list do
+      local left = (#list - i + 1)
+      if left >= needed then
+        local chunk = {}
+        for n = i, i + needed - 1 do
+          table.insert(chunk, list[n])
+        end
+        -- Now label uses the global lineIndex and increments after each chunk
+        local label = string.format("%d. %s", lineIndex, cName)
+        table.insert(self.CrateGroupList[Unit:GetName()], chunk)
+        local setIndex = #self.CrateGroupList[Unit:GetName()]
+        MENU_GROUP_COMMAND:New(theGroup, label, dropCratesMenu, self._UnloadSingleCrateSet, self, theGroup, theUnit, setIndex)
+
+        i = i + needed
+      else
+        local chunk = {}
+        for n = i, #list do
+          table.insert(chunk, list[n])
+        end
+        local label = string.format("%d. %s %d/%d", lineIndex, cName, left, needed)
+        table.insert(self.CrateGroupList[Unit:GetName()], chunk)
+        local setIndex = #self.CrateGroupList[Unit:GetName()]
+        MENU_GROUP_COMMAND:New(theGroup, label, dropCratesMenu, self._UnloadSingleCrateSet, self, theGroup, theUnit, setIndex)
+
+        i = #list + 1
+      end
+
+      lineIndex = lineIndex + 1
     end
   end
 end
@@ -4476,21 +4551,12 @@ end
 -- @param #CTLD self
 -- @param Wrapper.Group#GROUP Group The calling group.
 -- @param Wrapper.Unit#UNIT Unit The calling unit.
--- @param #number cargoId the Cargo ID
+-- @param #number chunkID the Cargo ID
 -- @return #CTLD self
-function CTLD:_UnloadSingleTroopByID(Group, Unit, cargoID)
-  self:T(self.lid .. " _UnloadSingleTroopByID for cargo ID " .. tostring(cargoID))
+function CTLD:_UnloadSingleTroopByID(Group, Unit, chunkID)
+  self:T(self.lid .. " _UnloadSingleTroopByID chunkID=" .. tostring(chunkID))
 
-  -- check if we are in LOAD zone
   local droppingatbase = false
-  local canunload = true
-
-  -- Door check
-  if self.pilotmustopendoors and not UTILS.IsLoadingDoorOpen(Unit:GetName()) then
-    self:_SendMessage("You need to open the door(s) to unload troops!", 10, false, Group)
-    if not self.debug then return self end 
-  end
-
   local inzone, zonename, zone, distance = self:IsUnitInZone(Unit, CTLD.CargoZoneType.LOAD)
   if not inzone then
     inzone, zonename, zone, distance = self:IsUnitInZone(Unit, CTLD.CargoZoneType.SHIP)
@@ -4499,120 +4565,116 @@ function CTLD:_UnloadSingleTroopByID(Group, Unit, cargoID)
     droppingatbase = true
   end
 
-  -- check for hover unload
-  local hoverunload = self:IsCorrectHover(Unit) -- if true we\'re hovering in parameters
-  local IsHerc = self:IsHercules(Unit)
-  local IsHook = self:IsHook(Unit) 
-  if IsHerc and (not IsHook) then
-    -- no hover but airdrop here
-    hoverunload = self:IsCorrectFlightParameters(Unit)
+  if self.pilotmustopendoors and not UTILS.IsLoadingDoorOpen(Unit:GetName()) then
+    self:_SendMessage("You need to open the door(s) to unload troops!", 10, false, Group)
+    if not self.debug then return self end 
   end
 
-  -- check if we\'re landed
+  local hoverunload = self:IsCorrectHover(Unit)
+  local isHerc = self:IsHercules(Unit)
+  local isHook = self:IsHook(Unit)
+  if isHerc and not isHook then
+    hoverunload = self:IsCorrectFlightParameters(Unit)
+  end
   local grounded = not self:IsUnitInAir(Unit)
-  -- Get what we have loaded
-  local unitname = Unit:GetName()
+  local unitName = Unit:GetName()
 
-  if self.Loaded_Cargo[unitname] and (grounded or hoverunload) then
+  if self.Loaded_Cargo[unitName] and (grounded or hoverunload) then
     if not droppingatbase or self.debug then
-
-      ------------------------------------------------------------------------
-      -- (NEW CODE FOR SINGLE DROP) 
-      -- Instead of dropping ALL troop cargo, we only drop the one matching cargoID.
-      ------------------------------------------------------------------------
-      local loadedCargoData = self.Loaded_Cargo[unitname] or {} -- #CTLD.LoadedCargo
-      local cargoList       = loadedCargoData.Cargo or {}
-
-      local foundCargo = nil
-      for _, cargoObj in ipairs(cargoList) do
-        if (cargoObj:GetType() == CTLD_CARGO.Enum.TROOPS or cargoObj:GetType() == CTLD_CARGO.Enum.ENGINEERS)
-           and not cargoObj:WasDropped()
-           and (cargoObj:GetID() == cargoID)
-        then
-          foundCargo = cargoObj
-          break
-        end
+      if not self.TroopsIDToChunk or not self.TroopsIDToChunk[chunkID] then
+        self:_SendMessage(string.format("No troop cargo chunk found for ID %d!", chunkID), 10, false, Group)
+        if not self.debug then return self end
+        return self
       end
 
-      if foundCargo then
-        local cType     = foundCargo:GetType() 
-        local name      = foundCargo:GetName() or "none"
-        local temptable = foundCargo:GetTemplates() or {}
-        local zoneradius = self.troopdropzoneradius or 100 -- drop zone radius
-        local factor = 1
-        if IsHerc then
-          factor     = foundCargo:GetCratesNeeded() or 1 -- spread a bit more if airdropping
-          zoneradius = Unit:GetVelocityMPS() or 100
+      local chunk = self.TroopsIDToChunk[chunkID]
+      if not chunk or #chunk == 0 then
+        self:_SendMessage(string.format("Troop chunk is empty for ID %d!", chunkID), 10, false, Group)
+        if not self.debug then return self end
+        return self
+      end
+
+      -- Drop ONLY the FIRST cargo in that chunk
+      local foundCargo = chunk[1]
+      if not foundCargo then
+        self:_SendMessage(string.format("No troop cargo at chunk %d!", chunkID), 10, false, Group)
+        if not self.debug then return self end
+        return self
+      end
+
+      local cType = foundCargo:GetType()
+      local name  = foundCargo:GetName() or "none"
+      local tmpl  = foundCargo:GetTemplates() or {}
+      local zoneradius = self.troopdropzoneradius or 100
+      local factor = 1
+      if isHerc then
+        factor = foundCargo:GetCratesNeeded() or 1
+        zoneradius = Unit:GetVelocityMPS() or 100
+      end
+      local zone = ZONE_GROUP:New(string.format("Unload zone-%s", unitName), Group, zoneradius * factor)
+      local randomcoord = zone:GetRandomCoordinate(10, 30 * factor)
+      local heading = Group:GetHeading() or 0
+
+      if grounded or hoverunload then
+        randomcoord = Group:GetCoordinate()
+        local Angle = (heading + 270) % 360
+        if isHerc or isHook then
+          Angle = (heading + 180) % 360
         end
-        local zone = ZONE_GROUP:New(string.format("Unload zone-%s",unitname), Group, zoneradius * factor)
-        local randomcoord = zone:GetRandomCoordinate(10, 30 * factor)
-        local heading     = Group:GetHeading() or 0
-        -- Spawn troops left from us, closer when hovering, further off when landed
-        if hoverunload or grounded then
-          randomcoord = Group:GetCoordinate()
-          -- slightly left from us
-          local Angle = (heading + 270) % 360
-          if IsHerc or IsHook then Angle = (heading + 180) % 360 end
-          local offset = hoverunload and self.TroopUnloadDistHover or self.TroopUnloadDistGround
-          if IsHerc then offset = self.TroopUnloadDistGroundHerc or 25 end
-          if IsHook then
-            offset = self.TroopUnloadDistGroundHook or 15
-            if hoverunload and self.TroopUnloadDistHoverHook then
-              offset = self.TroopUnloadDistHoverHook or 5
-            end
+        local offset = hoverunload and self.TroopUnloadDistHover or self.TroopUnloadDistGround
+        if isHerc then
+          offset = self.TroopUnloadDistGroundHerc or 25
+        end
+        if isHook then
+          offset = self.TroopUnloadDistGroundHook or 15
+          if hoverunload and self.TroopUnloadDistHoverHook then
+            offset = self.TroopUnloadDistHoverHook or 5
           end
-          randomcoord:Translate(offset, Angle, nil, true)
         end
+        randomcoord:Translate(offset, Angle, nil, true)
+      end
 
-        local tempcount = 0
-        if IsHook then tempcount = self.ChinookTroopCircleRadius or 5 end -- 10m circle for the Chinook
-        for _, _template in pairs(temptable) do
-          self.TroopCounter = self.TroopCounter + 1
-          tempcount = tempcount + 1
-          local alias = string.format("%s-%d", _template, math.random(1,100000))
-          local rad   = 2.5 + (tempcount * 2)
-          local Positions = self:_GetUnitPositions(randomcoord, rad, heading, _template)
-
-          self.DroppedTroops[self.TroopCounter] = SPAWN:NewWithAlias(_template, alias)
-            :InitDelayOff()
-            :InitSetUnitAbsolutePositions(Positions)
-            :OnSpawnGroup(function(grp) grp.spawntime = timer.getTime() end)
-            :SpawnFromVec2(randomcoord:GetVec2())
-
-          self:__TroopsDeployed(1, Group, Unit, self.DroppedTroops[self.TroopCounter], cType)
-        end
-        foundCargo:SetWasDropped(true)
-        if cType == CTLD_CARGO.Enum.ENGINEERS then
-          self.Engineers = self.Engineers + 1
-          local grpname  = self.DroppedTroops[self.TroopCounter]:GetName()
-          self.EngineersInField[self.Engineers] = CTLD_ENGINEERING:New(name, grpname)
-          self:_SendMessage(string.format("Dropped Engineers %s into action!", name), 10, false, Group)
-        else
-          self:_SendMessage(string.format("Dropped Troops %s into action!", name), 10, false, Group)
-        end
+      local tempcount = 0
+      if isHook then
+        tempcount = self.ChinookTroopCircleRadius or 5
+      end
+      for _, _template in pairs(tmpl) do
+        self.TroopCounter = self.TroopCounter + 1
+        tempcount = tempcount + 1
+        local alias = string.format("%s-%d", _template, math.random(1,100000))
+        local rad   = 2.5 + (tempcount * 2)
+        local Positions = self:_GetUnitPositions(randomcoord, rad, heading, _template)
+        self.DroppedTroops[self.TroopCounter] = SPAWN:NewWithAlias(_template, alias)
+          :InitDelayOff()
+          :InitSetUnitAbsolutePositions(Positions)
+          :OnSpawnGroup(function(grp) grp.spawntime = timer.getTime() end)
+          :SpawnFromVec2(randomcoord:GetVec2())
+        self:__TroopsDeployed(1, Group, Unit, self.DroppedTroops[self.TroopCounter], cType)
+      end
+      
+      foundCargo:SetWasDropped(true)
+      if cType == CTLD_CARGO.Enum.ENGINEERS then
+        self.Engineers = self.Engineers + 1
+        self:_SendMessage(string.format("Dropped Engineers %s into action!", name), 10, false, Group)
       else
-        -- We did not find any troop cargo with that ID
-        self:_SendMessage(string.format("No troop cargo with ID %d found or already dropped!", cargoID), 10, false, Group)
+        self:_SendMessage(string.format("Dropped Troops %s into action!", name), 10, false, Group)
+      end
+
+      table.remove(chunk, 1)
+      if #chunk == 0 then
+        self.TroopsIDToChunk[chunkID] = nil
       end
 
     else
-      -- droppingatbase logic
-      self:_SendMessage("Troops have returned to base!", 10, false, Group) 
+      -- Return to base logic, remove ONLY the first cargo
+      self:_SendMessage("Troops have returned to base!", 10, false, Group)
       self:__TroopsRTB(1, Group, Unit, zonename, zone)
 
-      --------------------------------------------------------------------
-      -- (NEW CODE FOR SINGLE DROP AT BASE)
-      -- If you want to return only the single cargo item with cargoID to stock
-      -- instead of returning all, you can do something similar here:
-      --------------------------------------------------------------------
-      local loadedCargoData = self.Loaded_Cargo[unitname] or {}
-      local cargoList       = loadedCargoData.Cargo or {}
-      for _, cObj in ipairs(cargoList) do
-        if (cObj:GetType() == CTLD_CARGO.Enum.TROOPS or cObj:GetType() == CTLD_CARGO.Enum.ENGINEERS)
-           and (cObj:GetID() == cargoID)
-        then
-          -- Return this one cargo to stock
-          local cName  = cObj:GetName()
+      if self.TroopsIDToChunk and self.TroopsIDToChunk[chunkID] then
+        local chunk = self.TroopsIDToChunk[chunkID]
+        if #chunk > 0 then
+          local firstObj = chunk[1]
+          local cName = firstObj:GetName()
           local gentroops = self.Cargo_Troops
           for _id, _troop in pairs(gentroops) do
             if _troop.Name == cName then
@@ -4622,53 +4684,42 @@ function CTLD:_UnloadSingleTroopByID(Group, Unit, cargoID)
               end
             end
           end
-          -- Mark it as dropped so we remove it from the loaded cargo
-          cObj:SetWasDropped(true)
+          firstObj:SetWasDropped(true)
+          table.remove(chunk, 1)
+          if #chunk == 0 then
+            self.TroopsIDToChunk[chunkID] = nil
+          end
         end
       end
     end
 
-    ------------------------------------------------------------------------
-    -- cleanup load list
-    ------------------------------------------------------------------------
-    local cargoList = self.Loaded_Cargo[unitname].Cargo
-
-    -- 1) Remove all dropped cargo (iterate backward for table.remove)
+    local cargoList = self.Loaded_Cargo[unitName].Cargo
     for i = #cargoList, 1, -1 do
       if cargoList[i]:WasDropped() then
         table.remove(cargoList, i)
       end
     end
-
-    -- 2) Recount
     local troopsLoaded = 0
     local cratesLoaded = 0
     for _, cargo in ipairs(cargoList) do
-      local cType = cargo:GetType()
-      if cType == CTLD_CARGO.Enum.TROOPS or cType == CTLD_CARGO.Enum.ENGINEERS then
-        -- If each cargo item represents just 1 group (or “1 load of troops”):
+      local cT = cargo:GetType()
+      if cT == CTLD_CARGO.Enum.TROOPS or cT == CTLD_CARGO.Enum.ENGINEERS then
         troopsLoaded = troopsLoaded + 1
-        -- If you track “troops loaded” by `CratesNeeded()`,
-        -- then do: troopsLoaded = troopsLoaded + cargo:GetCratesNeeded()
       else
         cratesLoaded = cratesLoaded + 1
       end
     end
-
-    self.Loaded_Cargo[unitname].Troopsloaded = troopsLoaded
-    self.Loaded_Cargo[unitname].Cratesloaded = cratesLoaded
-
+    self.Loaded_Cargo[unitName].Troopsloaded = troopsLoaded
+    self.Loaded_Cargo[unitName].Cratesloaded = cratesLoaded
     self:_RefreshDropTroopsMenu(Group, Unit)
-
-
   else
-    if IsHerc then
+    local isHerc = self:IsHercules(Unit)
+    if isHerc then
       self:_SendMessage("Nothing loaded or not within airdrop parameters!", 10, false, Group)
     else
       self:_SendMessage("Nothing loaded or not hovering within parameters!", 10, false, Group)
     end
   end
-
   return self
 end
 
@@ -4678,31 +4729,46 @@ end
 -- @param Wrapper.Unit#UNIT Unit The requesting unit.
 -- @return #CTLD self
 function CTLD:_RefreshDropTroopsMenu(Group, Unit)
-  local theGroup=Group
-  local theUnit=Unit
+  local theGroup = Group
+  local theUnit  = Unit
   if not theGroup.CTLDTopmenu then return end
-  local topTroops=theGroup.MyTopTroopsMenu
+  local topTroops = theGroup.MyTopTroopsMenu
   if not topTroops then return end
-  if topTroops.DropTroopsMenu then topTroops.DropTroopsMenu:Remove() end
-  local dropTroopsMenu=MENU_GROUP:New(theGroup,"Drop Troops",topTroops)
-  topTroops.DropTroopsMenu=dropTroopsMenu
-  MENU_GROUP_COMMAND:New(theGroup,"Drop ALL troops",dropTroopsMenu,self._UnloadTroops,self,theGroup,theUnit)
-  local loadedData=self.Loaded_Cargo[theUnit:GetName()]
-  if loadedData and loadedData.Cargo then
-    for i,cargoObj in ipairs(loadedData.Cargo) do
-      if cargoObj and (cargoObj:GetType()==CTLD_CARGO.Enum.TROOPS or cargoObj:GetType()==CTLD_CARGO.Enum.ENGINEERS)
-         and not cargoObj:WasDropped()
-      then
-        local name=cargoObj:GetName()or"Unknown"
-        local size=cargoObj:GetCratesNeeded()or 1
-        local cID=cargoObj:GetID()
-        local index = i
-        local line = string.format("Drop: %s (#%d)", name, index)
-        MENU_GROUP_COMMAND:New(theGroup,line,dropTroopsMenu,self._UnloadSingleTroopByID,self,theGroup,theUnit,cID)
-      end
+  if topTroops.DropTroopsMenu then
+    topTroops.DropTroopsMenu:Remove()
+  end
+  local dropTroopsMenu = MENU_GROUP:New(theGroup, "Drop Troops", topTroops)
+  topTroops.DropTroopsMenu = dropTroopsMenu
+  MENU_GROUP_COMMAND:New(theGroup, "Drop ALL troops", dropTroopsMenu, self._UnloadTroops, self, theGroup, theUnit)
+
+  local loadedData = self.Loaded_Cargo[theUnit:GetName()]
+  if not loadedData or not loadedData.Cargo then return end
+
+  -- Gather troop cargo by name
+  local troopsByName = {}
+  for _, cargoObj in ipairs(loadedData.Cargo) do
+    if cargoObj
+       and (cargoObj:GetType() == CTLD_CARGO.Enum.TROOPS or cargoObj:GetType() == CTLD_CARGO.Enum.ENGINEERS)
+       and not cargoObj:WasDropped()
+    then
+      local name = cargoObj:GetName() or "Unknown"
+      troopsByName[name] = troopsByName[name] or {}
+      table.insert(troopsByName[name], cargoObj)
     end
   end
-  return self
+
+  self.TroopsIDToChunk = self.TroopsIDToChunk or {}
+
+  for tName, objList in pairs(troopsByName) do
+    table.sort(objList, function(a,b) return a:GetID() < b:GetID() end)
+    local count = #objList
+
+    local chunkID = objList[1]:GetID()
+    self.TroopsIDToChunk[chunkID] = objList
+
+    local label = string.format("Drop %s (%d)", tName, count)
+    MENU_GROUP_COMMAND:New(theGroup, label, dropTroopsMenu, self._UnloadSingleTroopByID, self, theGroup, theUnit, chunkID)
+  end
 end
 
 --- [Internal] Function to check if a template exists in the mission.