The way the zombie mod works, it doesn't matter if you choose Terrorist or Counter-Terrorists, because they spawn in the same place and are on the same team, you only need to pick for the character model you want. Once you spawn, everyone runs as far away from the spawn point as they can in all directions, searching for a hiding place. After 10, 15 seconds or so, one random player is changed to a Zombie. The Zombie has only a knife, has about 400 health, has a few lives, moves faster than humans, and has a bit of tunnel vision. When the zombie hits you, however, you are also turned to a zombie. The goal of the zombie side is to turn all or most of the Humans to zombies (not quite sure what the exact number is.) if not, the humans win. There's always you're really good hiding places that are hard for zombies to get into, but every once in a while, the zombie spawns inside of that hiding place. It's so much fun to hear the voice chat at that point. Here's a quote from one such occasion:
"Wow, look how many people there are hear. Wouldn't that suck if one of us turned to the zomb- Oh god it's here, everyone run away!"
So anyway, I recommend you play this mod if you get a chance.
