Setting
The base used to be used as a sort of experimentation site for activities that would be deemed illegal and inhumane by other governments. After all, what better way to hide a project than to bury it underground? After one of their 'superior soldier' experiments went wrong, unleashing hundreds of insane 'failures' into the facility, the government shut the program down and blew up all the known entrances to the bunker, trapping the 'super failures' (and quite a few scientists) inside. Years later, a Killer stumbled upon a undamaged maintenance door that had gone unnoticed, and got inside. Since then, the entrance has been widened and made public, and as Killers pushed deeper and deeper into the facility and cleared out any dangers, several establishments and homes have been made in the bunker. It's a sort of underground town for Killers. Here you can find apartments, bars, a sickbay, and every sort of entertainment, including an arena.