The document describes 7 levels of a zombie shooter game. In level 1, the player jumps across rooftops saving civilians and fighting zombies. Level 2 has the player fighting through a building to reach a supply drop. Level 3 includes paths through a subway or street that join, where the player fights zombies and bosses. Level 4 involves fighting through a research facility. Level 5 takes place in sewers with toxic barrels. Level 6 gets darker and includes boss fights. Level 7 involves escaping on a helicopter while fighting zombies from the air and a final boss.