TD: various map and script fixes

mods/cnc/maps/gdi04a/gdi04a.lua

@@ -103,12 +103,20 @@ SetupWorld = function()
 	Trigger.OnRemovedFromWorld(crate, function() gdi.MarkCompletedObjective(gdiObjective) end)
 end
 
+initialSong = "fist226m"
+PlayMusic = function()
+	Media.PlayMusic(initialSong, PlayMusic)
+	initialSong = nil
+end
+
 WorldLoaded = function()
 	gdi = Player.GetPlayer("GDI")
 	nod = Player.GetPlayer("Nod")
 
 	SetupWorld()
 
+	PlayMusic()
+
 	Trigger.OnObjectiveAdded(gdi, function(p, id)
 		Media.DisplayMessage(p.GetObjectiveDescription(id), "New " .. string.lower(p.GetObjectiveType(id)) .. " objective")
 	end)