Footsoldier was shooting his gun at the plants in the battle inside the neighborhood. He then starts getting shot at by a Peashooter. Footsoldier then turns to the Peashooter and uses his ZPG ability, shooting a rocket that instantly blew up and killed the peashooter. His health is pretty low because of that peashooter. Scientist then places down a zombie heal station, healing Footsoldier

(You can make up the rest from here if you wish)