In this game you play as a STFU soldier (Special Trained Force Unit) your task is to elliminate as many infected zombies as possible.
while you kill thousands of zombies you gain points. These points can be spent on more powerful weapons, upgrades and weapon attachments.
weapons include:
AK-47
M16A1
Ithaca37 (shotgun)
.44 Magnum
Grenades
Upgrades & attachments includes:
Kevlar Vest
Bandolier
Grenade Pouches
Hollow-point Rounds
Dual Magazines
Fore Grip
also there are 3 different maps that you can play:
Forest
Dungeon
Lab