add a mossberg 930 with an aimpoint, a windham weaponry 15 with an eotech and drum mag with a dd grip, a ruger ar556 and a remington 870 and a lever rifle, and when you point the mossberg at the entrance, you will hear "Hello brother" and then your character fires off 6 rounds
btw here are the guns: handgun, auto-rifle, shotgun, m249 saw and lastly: sniper rifle. and i forgot to tell you guys that the enemies are blind and will move to where they last heard you