Shooting Zombies Game

One day all zombies return from darkness, zombies are over all the world, zombies damage everything around, and zombies eat all people brain, is apocalypse day?? NOPE!!! You, only you can save the world by shooting kill zombies, clear zombies all from my world. You hate zombies, you want shooting kill zombies all and save the world for turning back to piece. Arm yourself with the best guns a…