Everyone makes decisions for good or bad depends on how you justify it. In this case you will take the role of a guy that was saved by a soldier that is part of a resistance that has left the army in order to clean up the cities from masses of infected zombies. You will join them, this is your decision. Clean up areas of the city to reduce the threat of a takeover and take over towers to inforce the parts of the cities you have already visited. Upgrade your weapons so you will get more dead flesh splatter from blasting off these zombies heads. The zombies in this game are not the usual dumb zombies you will find in most games because they will throw bricks at you and almost anything that they can grab within reach. Little things like that make this game very fun and worth playing combined with ease of controls this is definitely one awesome zombie shooter game.