[BUG] Blitz2v2 breaks when team names are not red and blue

[zigg1zagg1]

Describe the bug When playing blitz2v2 (and probably 4v4 also) the first round will play as normal, but the 2nd will never start. If the gamemode requires red/blue team names then it should be required to start the match, like in ctf.

Example demo: blitz2v2_blue_vs_forz[dm2]20221108-2022.zip