Off Limits is a secret Scorpion-7 lab in Yukon, and is hard to get to. It spawns many medical items as well as civilian grade firearms (particularly Vipers) and military ammo. A Mega Zombie spawns in one of the biodomes. Off Limits spawns zombies with a full Biohazard Suit and Explorers are a common find. Off Limits contains several labs, 3 biodomes, and a cargo area. In the biodomes, one may encounter naked zombies, suggesting that the facility ran some experiments on humans.