The player takes the role of the leader and has to build up a team whatever action it may take. With the help of this team he has to take control of the world of Ground Zero. To achieve this he must conquer 20 different locations and protect them from his enemies. The leader can choose between 250 different equipments like weapons, armour, building materials and food. There are 4 different professions: mercenary, technician, hunter, and doctor.