If you've played it great if you haven't here are the rules:
3 people are cops and 3 people are robbers. The robbers run around the map and the cops look for them. When they find one they say "get on the ground" and the robber either runs or gets down. If they get down throw an ied and tell them what to do. If they run, you have the right to kill them. Robbers can kill cops, but if someone doesn't witness the killing the robber cant be killed on sight. When telling someone to get down say their general location or their gamertag. I'll tell you the classes when you get in the game. Every three rounds you switch sides and guns depending on whether you are a cop or a robber. You can take a player to jail if you want.

Requirements:
Good mic
Good understanding of the game
Have fun
Follow the rules or be kicked

Yes their are a lot of rules but it is a really fun game if you have people that follow the rules.
MSG LightningBeast7 on xbox 360 for inv