diff --git a/Moose Development/Moose/AI/AI_BAI.lua b/Moose Development/Moose/AI/AI_BAI.lua
index b71afd048..9da590e03 100644
--- a/Moose Development/Moose/AI/AI_BAI.lua	
+++ b/Moose Development/Moose/AI/AI_BAI.lua	
@@ -515,8 +515,8 @@ function AI_BAI_ZONE:onafterEngage( Controllable, From, Event, To,
     --- Calculate the current route point.
     local CurrentVec2 = self.Controllable:GetVec2()
     
-    --TODO: Create GetAltitude function for GROUP, and delete GetUnit(1).
-    local CurrentAltitude = self.Controllable:GetUnit(1):GetAltitude()
+    --DONE: Create GetAltitude function for GROUP, and delete GetUnit(1).
+    local CurrentAltitude = self.Controllable:GetAltitude()
     local CurrentPointVec3 = POINT_VEC3:New( CurrentVec2.x, CurrentAltitude, CurrentVec2.y )
     local ToEngageZoneSpeed = self.PatrolMaxSpeed
     local CurrentRoutePoint = CurrentPointVec3:WaypointAir( 
diff --git a/Moose Development/Moose/AI/AI_CAP.lua b/Moose Development/Moose/AI/AI_CAP.lua
index 611a27b54..6653387cc 100644
--- a/Moose Development/Moose/AI/AI_CAP.lua	
+++ b/Moose Development/Moose/AI/AI_CAP.lua	
@@ -428,8 +428,8 @@ function AI_CAP_ZONE:onafterEngage( Controllable, From, Event, To )
     --- Calculate the current route point.
     local CurrentVec2 = self.Controllable:GetVec2()
     
-    --TODO: Create GetAltitude function for GROUP, and delete GetUnit(1).
-    local CurrentAltitude = self.Controllable:GetUnit(1):GetAltitude()
+    --DONE: Create GetAltitude function for GROUP, and delete GetUnit(1).
+    local CurrentAltitude = self.Controllable:GetAltitude()
     local CurrentPointVec3 = POINT_VEC3:New( CurrentVec2.x, CurrentAltitude, CurrentVec2.y )
     local ToEngageZoneSpeed = self.PatrolMaxSpeed
     local CurrentRoutePoint = CurrentPointVec3:WaypointAir( 
diff --git a/Moose Development/Moose/AI/AI_CAS.lua b/Moose Development/Moose/AI/AI_CAS.lua
index d8879f409..0a66f85da 100644
--- a/Moose Development/Moose/AI/AI_CAS.lua	
+++ b/Moose Development/Moose/AI/AI_CAS.lua	
@@ -460,7 +460,7 @@ function AI_CAS_ZONE:onafterEngage( Controllable, From, Event, To,
     local CurrentVec2 = self.Controllable:GetVec2()
     
     --TODO: Create GetAltitude function for GROUP, and delete GetUnit(1).
-    local CurrentAltitude = self.Controllable:GetUnit(1):GetAltitude()
+    local CurrentAltitude = self.Controllable:GetAltitude()
     local CurrentPointVec3 = POINT_VEC3:New( CurrentVec2.x, CurrentAltitude, CurrentVec2.y )
     local ToEngageZoneSpeed = self.PatrolMaxSpeed
     local CurrentRoutePoint = CurrentPointVec3:WaypointAir( 
diff --git a/Moose Development/Moose/AI/AI_Patrol.lua b/Moose Development/Moose/AI/AI_Patrol.lua
index a20f02ee4..d9b1e7f83 100644
--- a/Moose Development/Moose/AI/AI_Patrol.lua	
+++ b/Moose Development/Moose/AI/AI_Patrol.lua	
@@ -743,8 +743,8 @@ function AI_PATROL_ZONE:onafterRoute( Controllable, From, Event, To )
     if self.Controllable:InAir() == false then
       self:T( "Not in the air, finding route path within PatrolZone" )
       local CurrentVec2 = self.Controllable:GetVec2()
-      --TODO: Create GetAltitude function for GROUP, and delete GetUnit(1).
-      local CurrentAltitude = self.Controllable:GetUnit(1):GetAltitude()
+      --DONE: Create GetAltitude function for GROUP, and delete GetUnit(1).
+      local CurrentAltitude = self.Controllable:GetAltitude()
       local CurrentPointVec3 = POINT_VEC3:New( CurrentVec2.x, CurrentAltitude, CurrentVec2.y )
       local ToPatrolZoneSpeed = self.PatrolMaxSpeed
       local CurrentRoutePoint = CurrentPointVec3:WaypointAir( 
@@ -758,8 +758,8 @@ function AI_PATROL_ZONE:onafterRoute( Controllable, From, Event, To )
     else
       self:T( "In the air, finding route path within PatrolZone" )
       local CurrentVec2 = self.Controllable:GetVec2()
-      --TODO: Create GetAltitude function for GROUP, and delete GetUnit(1).
-      local CurrentAltitude = self.Controllable:GetUnit(1):GetAltitude()
+      --DONE: Create GetAltitude function for GROUP, and delete GetUnit(1).
+      local CurrentAltitude = self.Controllable:GetAltitude()
       local CurrentPointVec3 = POINT_VEC3:New( CurrentVec2.x, CurrentAltitude, CurrentVec2.y )
       local ToPatrolZoneSpeed = self.PatrolMaxSpeed
       local CurrentRoutePoint = CurrentPointVec3:WaypointAir( 
@@ -871,8 +871,9 @@ function AI_PATROL_ZONE:onafterRTB()
     --- Calculate the current route point.
     local CurrentVec2 = self.Controllable:GetVec2()
     
-    --TODO: Create GetAltitude function for GROUP, and delete GetUnit(1).
-    local CurrentAltitude = self.Controllable:GetUnit(1):GetAltitude()
+    --DONE: Create GetAltitude function for GROUP, and delete GetUnit(1).
+    --local CurrentAltitude = self.Controllable:GetUnit(1):GetAltitude()
+    local CurrentAltitude = self.Controllable:GetAltitude()
     local CurrentPointVec3 = POINT_VEC3:New( CurrentVec2.x, CurrentAltitude, CurrentVec2.y )
     local ToPatrolZoneSpeed = self.PatrolMaxSpeed
     local CurrentRoutePoint = CurrentPointVec3:WaypointAir( 
diff --git a/Moose Development/Moose/Core/Zone.lua b/Moose Development/Moose/Core/Zone.lua
index 09a148987..58d03cf31 100644
--- a/Moose Development/Moose/Core/Zone.lua	
+++ b/Moose Development/Moose/Core/Zone.lua	
@@ -1157,7 +1157,7 @@ end
 -- @return #boolean true if the location is within the zone.
 function ZONE_RADIUS:IsVec2InZone( Vec2 )
   self:F2( Vec2 )
-
+  if not Vec2 then return false end 
   local ZoneVec2 = self:GetVec2()
 
   if ZoneVec2 then
@@ -1175,7 +1175,7 @@ end
 -- @return #boolean true if the point is within the zone.
 function ZONE_RADIUS:IsVec3InZone( Vec3 )
   self:F2( Vec3 )
-
+  if not Vec3 then return false end 
   local InZone = self:IsVec2InZone( { x = Vec3.x, y = Vec3.z } )
 
   return InZone
@@ -1966,7 +1966,7 @@ end
 -- @return #boolean true if the location is within the zone.
 function ZONE_POLYGON_BASE:IsVec2InZone( Vec2 )
   self:F2( Vec2 )
-
+   if not Vec2 then return false end 
   local Next
   local Prev
   local InPolygon = false