User blog comment:Would Never Think!/Abusive Players Online, Please Admit here./@comment-3455248-20120514190555

I also have a "no first strike" policy and like cooperative play as well as competitive play. Unfortunately there are some "people" (in the loosest sense of the term) who have failed so badly in their own lives that they choose to spend their time online spewing out hate instead of just enjoying the game. There's no excuse for what they do, but about all you can do is to mute them or change sessions to try to find a better crowd.

BTW, here's a good video about the problem of harassment - I like some of the solutions they talk about: Extra Credits - Harassment.

If you haven't tried the co-op missions, you should give them a try since they're all about cooperation. I also generally switch to either Friendly or Hardcore free roam if I'm working on a challenge or something, since most of the assholes tend to be in Normal mode.