Air Force
A compooter. 8D
Poop: Please don't push. It's already tight in here! Poop to Pee: May I go first? Meanwhile, Fart pushing everyone to the sides.. Fart: Excuse me! Excuse me! I need to go!
They use the bullets to train the military.
A Corpseman. Painfully obvious, yet a terrible play on the English language, I know. It was something I came up with a few years ago, for some unknown reason.
The Air Force, because its US AF.