Fight against zombies with over 34 different unique guns for the highest score with an accurate ballistics engine or go to the range and test them all and try training exercises.
Zombie lunatics are attacking the city in broad daylight! Grab your SWAT weapons and let's grind some zombies into ground meat. You must protect the city, and above all, the president!
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 and a handful of others form the Last Line of Defense, pooling your remaining stockpile of weapons, special ammo, bunker defenses, and super-weapons to fend off the onslaught by virus infected, bloodthirsty Ravagers.