I hate they throw random people in there to kill you. I don't want to fight other people. I fucking HATE that. That should be optional not forced.
Edit: I was on a phone call and had the controller down on the coffee table. While on the phone I didn't notice someone was kicking my ass 'til it was too late. I almost don't want to play this game anymore at all.
Play Offline Mode, or don't ring the Co-op bell. If you do ring it, make sure you find that woman fast.