Ok, got the function fixed.

Moose/Cargo.lua

@@ -517,7 +517,7 @@ function CARGO_GROUP:Spawn( Client )
 			self.CargoGroupName = self.CargoSpawn:SpawnFromUnit( self.CargoZone:GetCargoHostUnit(), 60, 30, 1 ):GetName()
 		else
 			--- ReSpawn the Cargo in the CargoZone without a host ...
-			self.CargoGroupName = self.CargoSpawn:SpawnInZone( self.CargoZone, 1 ):GetName()
+			self.CargoGroupName = self.CargoSpawn:SpawnInZone( self.CargoZone, true, 1 ):GetName()
 		end
 		self:StatusNone()	
 	end

Moose/Spawn.lua

@@ -638,9 +638,11 @@ function SPAWN:SpawnFromUnit( HostUnit, OuterRadius, InnerRadius, SpawnIndex )
   return nil
 end
 
---- Will spawn a Group within a given @{ZONE}.
+--- Will spawn a Group within a given @{Zone#ZONE}.
+-- Once the group is spawned within the zone, it will continue on its route.
+-- The first waypoint (where the group is spawned) is replaced with the zone coordinates.
 -- @param #SPAWN self
--- @param #ZONE Zone The zone where the group is to be spawned.
+-- @param Zone#ZONE Zone The zone where the group is to be spawned.
 -- @param #number ZoneRandomize (Optional) Set to true if you want to randomize the starting point in the zone.
 -- @param #number SpawnIndex (Optional) The index which group to spawn within the given zone.
 -- @return Group#GROUP that was spawned.
@@ -689,6 +691,7 @@ end
 
 
 
+
 --- Will spawn a plane group in uncontrolled mode... 
 -- This will be similar to the uncontrolled flag setting in the ME.
 -- @return #SPAWN self