Ok I have created my first map.It's very unbalanced 2vs1 but nevertheless it was ment for fun not hard play. When I strat the map AI dosn't build barracks and infantry. I only tried hard GLA enemies. They just build supply depo and war factory.Then produce a lot of tanks and others and attack. Ai dosen't built any defense no advence buildings nothing. Maybe one of them have to less room for building but other have sufficient space to build.

If someone could tell me what's wrong I'll be greatefull.

I attached my map, maybe it would help. Sorry for naming it just mission but I haven't got idea for any other.

Download Attachment: Mission.rar 
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Well the only think I could find wrong with your map that might cause your problem is you've overlapped your trigger areas. Try moving around the trigger area so they don't over lap. You also don't need the trigger area called "Skirmish World" containing the whole. I think EA Games were going to use that area in their skirmish scripts but decided not to latter. That may be why so few skirmish maps have a skirmish world area in it.

Also, make the top left position in the map bigger (Use the civilian structure, TempBuildingSize) if you intend for skirmish players to be there. Though small buildings space I wouldn't think would cause the AI not build any barracks, it's just something you should do.