Internet 1st person shooter that pits US forces against the evil commies of Vietnam. Includes cool weapons to shoot people in the neck with. See dragonov
You can also knife unsuspecting people in the back when they are trying to pick up a weapon. See dragonov
You can also throw grenades and light people on fire. Over all its the shit.
I love shooting people in the base of the skull when I play Vietcong.