Biochemical crisis attacks humans ,As a sharpshooter,you must show your super ability,make bullet fly to shoot zombies!

The prosperous city becomes a dark hell overnight, all of this were due to the attacks from mutant zombies and mummies. The city has become empty except one artillery troop. Can they successfully defeat the zombies? It all depends on whether you are able to help them!

Tap to aim and shoot. The bullets are limited.