After the game had 'crashed' (but the program itself kept running), I've clicked the restart button and accepted the message asking me if I wanted to reconnect to the same server I've played on before. After reconnecting, the round was running fine, but right before it should have displayed the battle results, the game crashed.
If the crash.dmp is needed too, please tell me.
EDIT: The same crash just happened again (only the real crash, not the reconnect thing) and both crashes happened on Moon Silence, so maybe there's a problem with the map. Other maps seem to work fine.
EDIT2: I've played multiple rounds on Moon Silence again but it worked completely fine this time.
Customer support service by UserEcho