Did You Know?
There is a secret area in the steam tunnels that is made out to look like the lair of a Predator. There is a collection of human skulls, 2 Alien skulls, 2 Predator spears, a Predator's helmet, and the flying disc weapon from Predator 2. See more
And when you get to hell, tell them I sent you. You can get a group discount.
References Dirty Harry