Dude honestly it is a sick dream of mine. Imagine a whole parking lot full of zombies wanting to eat you. You're on top of a roof, AR-15 in hand and 1000's upon 1000's of rounds. You have to kill them all to progress to your next spot. BOOM! HEADSHOT! DOESN'T THAT SOUND FUN?!!!!
Nothing like a .22 for a plinkfest.
Dead Bears, the only good kind.