Start punishing quitters and afkers with one year ban.
i don't know man... today my game just locked itself and i couldn't use the keyboard or mouse.
the character respawned and was available when we got a new wave, but i was locked in place with no access even to the menus.
had to alt+f4.
so there you have it, i went afk then had to quit the match.
@mart1n1 You can rejoin the game just by clicking to queue for comp. It will see that you are already in a game and put you back in.