Something is causing the weapons to bug to where in your screen you see a gun but you can't shoot it. It's pretty easy to see this issue, when you are crouched if you try to aim your character instantly stands up and on a friends screen all they see is fists. Trying to reload makes your character heavy melee and trying to shoot makes you regular melee. THIS IS A GAME BREAKING BUG AND HAS BEEN AROUND SINCE THE 1.05 UPDATE! Are you actually working on this???