I'll be honest -- I heard that Aftermath was a zombie game and almost gave up on it. I wouldn't be offended if you did the same, since lots of developers (especially iPhone developers) are depending a little too much on zombies for their gameplay. Yes, it's fun to fight the walking undead, but they're used over and over again because a) they're easy to program, and b) they let you make a "shooting humans" game without getting involved in the whole morality thing.
But Aftermath is still worth a look. While a lot of zombie games on the store go abstract or silly, this one sticks pretty close to realistic, and it has some serious quality and interesting gameplay behind it. You're fighting