Played a zombie game, as a zombie. We were 30, 20 survivors and 10 zombies. Survivors were limited in BBs, and had to find a way to survive (take shelter, find food and medikit, find the keys for the SUV...). Zombies weak point was the legs (had to be shot 3 times to fall down). Zombies "bite" survivors when they managed to touch them with their head. After three bites, the survivor become a zombie.
That was pretty epic, please leave a comment or a question if you have any (I swear, I don't bite... much).