Zombies-Killer League:Shooting

Help! ah! A virus unlike anything we've seen before has spread like wildfire around the city.
Everyday people going about their business have been transformed into creatures that will kill any living thing they come across.
Survivors fled, hoping to escape, but now are a city of the dead.
Those lucky people who are still alive hide in any place, waiting to be rescued.

Come on, pick up the hands of the weapons to kill the zombies, and believe that you will surely be able to save the world and become a legend in the worldwide zombie killer league.