The only two who really use weapons are Emily and Brendon.

Emily, being a trained military soldier, knows how to use a machine gun or a RPG. But, her favorite weapons are hatchets, knives, daggers, basically anything you can swing and use to make someone bleed.

Brendon likes using one knife and his hair hands. Makes him think that he's cool.

But, if the two were to fight, Brendon's head wouldn't have a body to go to.