I don't like to do this, but after what I just saw, everybody should reconsider joining a game if this guy is present:
http://www.coh2.org/ladders/playercard/steamid/76561198036958820
I played a 4vs4 with him, us on the German side. He saved up 4 panthers, keeping them secure while we were having a hard time. I asked him repedeatly to help us, because camping and saving for a base rush is a really bad idea when a game is really intense and hasn't been decided yet. He refused, and then spectaculary lost all his panthers in less then a minute in the mud of Hill 331, not killing a single enemy tank. After that, I told him that he was quite frankly a really bad player, and then HE STARTED DESTROYING MY BASE!
I have had heated arguments with people, but that is absolutley insane. So if you are matched up with that guy, run!