I finally fixed the problem regarding the steam Mission editor, made one mission and it worked. After trying to make another mission @ a different location all the sudden whether loading in though the "test game" or even in the main game the mission loads into what looks like a greyish white "fog" i wouldn't say my screen goes completely white, it almost looks like an effect but i cant see anything and the task manager states the program is "Not Responding". I tried moving all the objects/players to another location on the map but the same problem occurs.
Im not 100% sure just yet but from messing around i think it happens after i add over 38 AI.... which is bull... went from watching ppl have 1000 AI in arma II and i cant even get 40? that's not cool.
One last edit for good measure. 64 people was max i could get it to work, may not be tiny but vs. 1000 it is upsetting :/
If there is some sort of AI limit in the game hopefully at some point there is a patch to add a notification that you have used too many AI before testing a map.