Shoot the zombies from your post! You are a trained soldier who accidentally falls into the forest. To add to the misery, you soon realize that you have zombies as your companion in the forest. You somehow manage to get to a place where you can take cover. The zombies attack fiercely to kill you and destroy the base you are in. Blast off all the evil zombies before they get too close and cause harm. Do not ignore availing the upgrades available during the game play because that makes you effective enough to stand against the increasing number and powers of the hungry zombies. Good luck!