click on zombies to shoot them click on medkits to get the but if a zombie touches a medkit or you forget about it the it goes for a few seconds if a zombie touches your shotgun he is out of range and you can not shoot him and he bites you and when your dead the bunker is invaded
hl2 shotgun sounds (credits to valve) P.S Play half-life 2 there is a update for it on steam I have it on my x-box original and it is AWESOME! Scratch for the programming (Credits to scratch)