diff --git a/Doc/DML Documentation.pdf b/Doc/DML Documentation.pdf
index 8bef0e5..7b73647 100644
Binary files a/Doc/DML Documentation.pdf and b/Doc/DML Documentation.pdf differ
diff --git a/Doc/DML Quick Reference.pdf b/Doc/DML Quick Reference.pdf
index 4d098bd..badc390 100644
Binary files a/Doc/DML Quick Reference.pdf and b/Doc/DML Quick Reference.pdf differ
diff --git a/modules/cloneZone.lua b/modules/cloneZone.lua
index c6a5ede..91697d9 100644
--- a/modules/cloneZone.lua
+++ b/modules/cloneZone.lua
@@ -59,6 +59,7 @@ cloneZones.respawnOnGroupID = true
 	2.4.0 - reworked masterOwner to fit with dmlZone 
 	2.5.0 - re-establish spawn zone in persistence to provide 
 	        empty! detection through saves (missed hasClones)
+	2.5.1 - f? and in? put on notice for depreciation
 --]]--
 
 --
@@ -215,9 +216,9 @@ function cloneZones.createClonerWithZone(theZone) -- has "Cloner"
 		theZone.cloneTriggerMethod = theZone:getStringFromZoneProperty("cloneTriggerMethod", "change")
 	end
 	
-	if theZone:hasProperty("f?") then 
+	if theZone:hasProperty("f?") then -- deprecated!
 		theZone.spawnFlag = theZone:getStringFromZoneProperty("f?", "none")
-	elseif theZone:hasProperty("in?") then 
+	elseif theZone:hasProperty("in?") then -- deprecated 
 		theZone.spawnFlag = theZone:getStringFromZoneProperty("in?", "none")
 	elseif theZone:hasProperty("spawn?") then 
 		theZone.spawnFlag = theZone:getStringFromZoneProperty("spawn?", "none")
diff --git a/modules/fogger.lua b/modules/fogger.lua
new file mode 100644
index 0000000..dad2e08
--- /dev/null
+++ b/modules/fogger.lua
@@ -0,0 +1,90 @@
+fogger = {}
+fogger.version = "1.0.0" 
+fogger.requiredLibs = {
+	"dcsCommon",
+	"cfxZones",
+}
+fogger.zones = {}
+
+--[[-- Version history
+  A DML module (c) 2024 by Christian FRanz 
+
+- 1.0.0 - Initial version 
+--]]--
+
+function fogger.createFogZone(theZone)
+	theZone.fogger =  theZone:getStringFromZoneProperty("fog?", "<none>")
+	theZone.lastFogger = trigger.misc.getUserFlag(theZone.fogger)
+	fogger.triggerMethod = theZone:getStringFromZoneProperty("triggerMethod", "change")
+	if theZone:hasProperty("visibility") then 
+		theZone.visMin, theZone.visMax =  theZone:getPositiveRangeFromZoneProperty("visibility", 0, 0)
+	end 
+	if theZone:hasProperty("thickness") then 
+		theZone.thickMin, theZone.thickMax = theZone:getPositiveRangeFromZoneProperty("thickness", 0,0)
+	end 
+	theZone.durMin, theZone.durMax = theZone:getPositiveRangeFromZoneProperty ("duration", 1, 1)
+end 
+
+function fogger.doFog(theZone)
+	local vis = world.weather.getFogVisibilityDistance()
+	if theZone.visMin then vis = dcsCommon.randomBetween(theZone.visMin, theZone.visMax) end
+	if vis < 100 then vis = 0 end 
+	local thick = world.weather.getFogThickness()
+	if theZone.thickMin then thick = dcsCommon.randomBetween(theZone.thickMin, theZone.thickMax) end 
+	if thick < 100 then thick = 0 end 
+	local dur = dcsCommon.randomBetween(theZone.durMin, theZone.durMax)
+	if theZone.verbose or fogger.verbose then 
+		trigger.action.outText("+++fog: will set fog vis = <" .. vis .. ">, thick = <" .. thick .. ">, transition <" .. dur .. "> secs", 30)
+	end 
+	world.weather.setFogAnimation({{dur, vis, thick}})
+end 
+
+-- update 
+function fogger.update()
+	timer.scheduleFunction(fogger.update, nil, timer.getTime() + 1/fogger.ups)
+	for idx, theZone in pairs(fogger.zones) do 
+		if theZone:testZoneFlag(theZone.fogger, theZone.triggerMethod, "lastFogger") then fogger.doFog(theZone) end
+	end
+end 
+
+-- config
+function fogger.readConfigZone()
+	-- note: must match exactly!!!!
+	local theZone = cfxZones.getZoneByName("foggerConfig") 
+	if not theZone then 
+		theZone = cfxZones.createSimpleZone("foggerConfig") 
+	end 
+	fogger.ups = theZone:getNumberFromZoneProperty("ups", 1)
+	fogger.name = "fogger" 
+	fogger.verbose = theZone.verbose 
+end
+
+-- go go go 
+function fogger.start()
+	-- lib check
+	if not dcsCommon.libCheck then 
+		trigger.action.outText("fogger requires dcsCommon", 30)
+		return false 
+	end 
+	if not dcsCommon.libCheck("fogger", fogger.requiredLibs) then
+		return false 
+	end	
+	-- read config 
+	fogger.readConfigZone()
+	-- process "fog?" Zones  
+	local attrZones = cfxZones.getZonesWithAttributeNamed("fog?")
+	for k, aZone in pairs(attrZones) do 
+		fogger.createFogZone(aZone)
+		fogger.zones[aZone.name] = aZone
+	end
+	-- invoke update 
+	fogger.update()
+	trigger.action.outText("Fogger v" .. fogger.version .. " started.", 30)
+	return true 
+end
+
+-- let's go!
+if not fogger.start() then 
+	trigger.action.outText("fogger aborted: error on start", 30)
+	fogger = nil 
+end
diff --git a/modules/playerScore.lua b/modules/playerScore.lua
index 4181482..8746d08 100644
--- a/modules/playerScore.lua
+++ b/modules/playerScore.lua
@@ -1,5 +1,5 @@
 cfxPlayerScore = {}
-cfxPlayerScore.version = "5.0.0"
+cfxPlayerScore.version = "5.0.1"
 cfxPlayerScore.name = "cfxPlayerScore" -- compatibility with flag bangers
 cfxPlayerScore.firstSave = true -- to force overwrite 
 --[[-- VERSION HISTORY
@@ -20,6 +20,7 @@ cfxPlayerScore.firstSave = true -- to force overwrite
 	5.0.0 - resolve killed units via cfxMX to patch DCS error 
 		  - reworked unit2score to use MX 
 	      - code cleanup 
+	5.0.1 - code hardening against name, type nilling 
 		  
 	TODO: Kill event no longer invoked for map objetcs, attribute 
 	      to faction now, reverse invocation direction with PlayerScore 
@@ -283,15 +284,16 @@ function cfxPlayerScore.unit2score(inUnit)
 	-- simply extend by adding items to the typescore table.concat
 	-- we first try by unit name. This allows individual
 	-- named hi-value targets to have individual scores 
-	local uScore = cfxPlayerScore.typeScore[vicName:upper()]
+	local uScore 
+	if vicName then uScore = cfxPlayerScore.typeScore[vicName:upper()] end 
 	-- see if all members of group score 
 	if (not uScore) then -- and vicGroup then 
 		local grpName = cfxMX.spawnedUnitGroupNameByName[vicName]--vicGroup:getName()
-		uScore = cfxPlayerScore.typeScore[grpName:upper()]
+		if grpName then uScore = cfxPlayerScore.typeScore[grpName:upper()] 	end 
 	end
 	if not uScore then 
-		-- WE NOW TRY TO ACCESS BY VICTIM'S TYPE STRING		
-		uScore = cfxPlayerScore.typeScore[vicType:upper()]
+		-- WE NOW TRY TO ACCESS BY VICTIM'S TYPE STRING	
+		if vicType then uScore = cfxPlayerScore.typeScore[vicType:upper()] 	end 
 	end 
 	if type(uScore) == "string" then 
 		-- convert string to number 
diff --git a/tutorial & demo missions/demo - foggy bottoms.miz b/tutorial & demo missions/demo - foggy bottoms.miz
new file mode 100644
index 0000000..fab0844
Binary files /dev/null and b/tutorial & demo missions/demo - foggy bottoms.miz differ