I have seen these kind of installations when I was in the military for years I was stationed at a base where a major part of it was like this. These are not barracks of any kind. The metal facilities built up on the rocks are huge electronic facilities probably filled with CIA and extensive phone and other electronic monitoring stuff. The bunker is one just like the ones I was around at the base I was at here in California. It is a missile launch bunker. Somewhere within a mile to 5 miles are silos with the missiles in them, This kind of a facility has minimal personal but filled with covered electronics that can even be monitored from the US itself. Not one of those large buildings is for people to live in or even really work in.