Shoot the targets that are moving around the assault courses. Make sure to hit enough targets and progress to the next level. Try to earn over 2000 points on a level to unlock bonus mod AK-47!
Blow apart big waves of zombies using an array of guns and hired buddies to fight by your side. Purchase bigger and better guns and hire assistance with big firepower to give those hoards of zombies a good spanking, keeping them away of your territory.
You are the commander of a space battle station. Below you, on the planet's surface, enemies are trying to capture deadly missile silos. Don't let them seize these silos. Protect them at all costs!
