Well people like to create there own games with the games rules like tdm. They will make games like prison, knife club, and lvl up, + many others. But you create your own character. Get him dressed up, choose his voice and others. You can use a codec to talk to other team mates. Then you have a part were you can chat like text. Then you can lvl up his skills. Example Blades 3 and CQC 1 will allow you to slit throats, Or CQC 3 will allow you to disarm a person of there gun. Pretty cool game. But there is many more features. If you want more info ill tell you more.
--------------------------------------------------------------------------- You know what they say. Sometimes the muppet has to take the hand out of his ass so he can learn to walk on his own. Wait... what?