zombie guard

From the cargo door of an black hawk aircraft your mission is to guard the zombies area and protect the palisade wall.
Consist of 20 levels zombie defense shooting games with different type and characteristic of zombie on each levels.
Kill all zombie before they reach your palisade wall then Upgrade your weapon and items after each levels complete.
UZI, AK47, M60, grenade and much more items you can use to guard the palisade.