diff --git a/Moose Development/Moose/Core/Menu.lua b/Moose Development/Moose/Core/Menu.lua
index e968b9350..f0962380d 100644
--- a/Moose Development/Moose/Core/Menu.lua	
+++ b/Moose Development/Moose/Core/Menu.lua	
@@ -207,7 +207,7 @@ end
 do -- MENU_BASE
 
   --- @type MENU_BASE
-  -- @extends Base#BASE
+  -- @extends Core.Base#BASE
 
   --- Defines the main MENU class where other MENU classes are derived from.
   -- This is an abstract class, so don't use it.
diff --git a/Moose Development/Moose/Core/Set.lua b/Moose Development/Moose/Core/Set.lua
index 44194929f..5230b20fe 100644
--- a/Moose Development/Moose/Core/Set.lua	
+++ b/Moose Development/Moose/Core/Set.lua	
@@ -308,17 +308,14 @@ do -- SET_BASE
   -- @return Core.Set#SET_BASE The set of objects that are in set *B* but **not** in this set *A*.
   function SET_BASE:GetSetComplement(SetB)
 
-    local complement=SET_BASE:New()
+    local complement = self:GetSetUnion(SetB)
+    local intersection = self:GetSetIntersection(SetB)
 
-    local union=self:GetSetUnion(SetA, SetB)
-
-    for _,Object in pairs(union.Set) do
-      if SetA:IsIncludeObject(Object) and SetB:IsIncludeObject(Object) then
-        intersection:Add(intersection)
-      end
+    for _,Object in pairs(intersection.Set) do
+        complement:Remove(Object.ObjectName,true)
     end
 
-    return intersection
+    return complement
   end
 
 
diff --git a/Moose Development/Moose/Functional/Fox.lua b/Moose Development/Moose/Functional/Fox.lua
index efcdc99a5..6624c352e 100644
--- a/Moose Development/Moose/Functional/Fox.lua	
+++ b/Moose Development/Moose/Functional/Fox.lua	
@@ -23,7 +23,6 @@
 -- @module Functional.FOX
 -- @image Functional_FOX.png
 
-
 --- FOX class.
 -- @type FOX
 -- @field #string ClassName Name of the class.
@@ -47,8 +46,7 @@
 -- @field #number dt10 Time step [sec] for missile position updates if distance to target > 10 km and < 50 km. Default 1 sec.
 -- @field #number dt05 Time step [sec] for missile position updates if distance to target > 5 km and < 10 km. Default 0.5 sec.
 -- @field #number dt01 Time step [sec] for missile position updates if distance to target > 1 km and < 5 km. Default 0.1 sec.
--- @field #number dt00 Time step [sec] for missile position updates if distance to target < 1 km. Default 0.01 sec.
--- @field #boolean 
+-- @field #number dt00 Time step [sec] for missile position updates if distance to target < 1 km. Default 0.01 sec. 
 -- @extends Core.Fsm#FSM
 
 --- Fox 3!
@@ -1813,4 +1811,4 @@ end
 
 ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
\ No newline at end of file
diff --git a/Moose Development/Moose/Wrapper/Group.lua b/Moose Development/Moose/Wrapper/Group.lua
index f1443b2d0..72c9215ab 100644
--- a/Moose Development/Moose/Wrapper/Group.lua	
+++ b/Moose Development/Moose/Wrapper/Group.lua	
@@ -568,12 +568,12 @@ function GROUP:GetSpeedMax()
   
     local Units=self:GetUnits()
     
-    local speedmax=nil
+    local speedmax=0
     
     for _,unit in pairs(Units) do
       local unit=unit --Wrapper.Unit#UNIT
       local speed=unit:GetSpeedMax()
-      if speedmax==nil then
+      if speedmax==0 then
         speedmax=speed
       elseif speed<speedmax then
         speedmax=speed
diff --git a/Moose Development/Moose/Wrapper/Unit.lua b/Moose Development/Moose/Wrapper/Unit.lua
index 3fb557504..098508f56 100644
--- a/Moose Development/Moose/Wrapper/Unit.lua	
+++ b/Moose Development/Moose/Wrapper/Unit.lua	
@@ -442,7 +442,7 @@ function UNIT:GetSpeedMax()
     return SpeedMax*3.6
   end
 
-  return nil
+  return 0
 end
 
 --- Returns the unit's max range in meters derived from the DCS descriptors.