City filled zombies to re-distribute your people to a dangerous virus. But you can not let that happen, because the zombie virus is capable to destroy all mankind. Sighted weapon will be a reliable companion to you for all thirty exciting levels, only manage to shoot in time. Skills in small arms will help you to save mankind from the zombies presence on the ground. Shoot so aptly to destroy the undead one shot at it, otherwise you will not cope with the spread of a dangerous virus.