I've just recently tried the 2v1 map mission like you asked GoogleFrog.
Download was sucessful.
Then I could see the loading screen..
Then when the game was ready and everything was finalized..
The map zoomed out a little and suddenly the game quit/crashed.
I was running the game on minimal graphics mode and even safe mode.
I wanted to test the game first before I started playing.
The specs of my laptop is not that good but I thought should be good enough to play.
Really apologize. New at this game and no idea what is going on mostly.