There are several kinds of people in an ATZ game: zombies, civilians, survivors, gangers, and military. You need all of those to play a game, just because any could show up at any time. Under "military" are the police, and so in order to fill out that requirement I picked up a blister pack of "Cops with Shotguns" by Future Wars (which is under the Copplestone Casting label). In theory they are supposed to be futuristic (naturally), but I wanted to paint them up a little retro for my ATZ campaign. These guys are armed with shotguns, pistols, and truncheons, and are led by a trenchcoat-wearing officer.
Once I get all of my categories filled out to a reasonable and workable extent, I'll be ready to start my ATZ campaign. My goal is the beginning of 2012, and I seem to be on track for that goal.