Today I made a quick 30-minute UMS map for evanthebouncy to show him some triggers for making a UMS map. In this demo map, each player picks terran or protoss, then picks resources, and finally builds units. After all players are ready (indicated by moving a civilian to a beacon), the map matches p1 vs p4 and then p2 vs p5. After these battles, the players start over picking more resources.

This demo map is (probably) playable but far from a finished product: I just wanted to show some methods for doing certain things in UMS maps.

So if you're interested in making UMS maps but aren't good at using triggers, then check out this demo and maybe it will help .

http://www.freewebs.com/bill307/DemoUMSMap.scm