Zombie Squad is a survival and combat FPS game that is based on the popular franchise. You are in the army of the king, fighting against the undead, and it is not easy to survive in this world. 

You have to find the key to survival. This is the only way to get to the end of the level. In order to get it, you have to shoot all the enemies. In the end, you will find a chest. Inside the chest, you will find the key to survival. 

In this game, you have to fight against all kinds of enemies, and the world is full of zombies. Shoot them all.