The zombies are coming at you full force and you and your team need to mow them down with your automatic machine guns and sniper rifles. Each level is mission based so you will have a different objective to carry out and I love that about this game. For instance in the first level you need to defend a zombie scarecrow and one of your team members gets injured. You have to go across the map with a lift and get yourself to a virtual shopping cart so that you can purchase a medic kit to get him back to fighting. In the following level you will have to defend the electrical power generator so that the grid stays powered for the few survivors left in the area. After every wave you will have a limited amount of time to explore the map and search out new items that will help you during the gameplay in all the different missions.