Nothing annoys me more than when we find health kits in a campaign and someone will heal when they are still in the Green only to steal the health kit while there are teammates in the red and without kits. Then they will only pass the injured player pills or an adrenaline shot.
I dont think I have played a SINGLE campaign in my whole history playing this game where someone doesnt disturb the Witch. Someone will run up going "Okay im gonna crown her" when we could EASILY just walk past her and they end up getting downed cause they cant do it properly.
Players who get mad and scream and yell in Versus games that we need to "attack together". Someone will wait for the other three players to respawn and then they scream and yell "CHARGER/BOOMER/SMOKER WTF ARE YOU DOING GET THEM!!!!! Okay thats it you are getting kicked "