system
A chat on 4chan
human
The DUMBS are as well maintained and as mapped out as any military base topside, the real /x/ shit happens when you talk about the tunnels and bunkers and cities maintained by non USDHS entities. These network of tunnels are so extensive that many of these labyrinths can't even be mapped by the shadow organizations that maintain them. 

Let's say a breach team raids an underground scientific institutes and comes into contact with a bio-weapon 100 times more dangerous then anthrax, the policy at that point is to simply fill it up with concrete with the soldiers still inside. This is done by protocol and though its sad there is still records of it. 

When it coms to bases that aren't military maintained the records get sloppy sometimes entire levels or manmade tunnel systems are simply forgotten and sealed, sometimes by accident and other times on purpose.

Its like the scene in the movie The Road, where they find the people being kept alive in the basement for food, that’s what some of these tunnels are like. there may have been a large gallery with a large entrance and a complex network at some point, but it was sealed off except for an air tunnel that’s 1000 feet long and only ten inches by ten inches.

Marines had to climb through natural caves for 6 hours just to find that 10 inch portal. so they get a small drone and send it down there, and when it pops out the other side it's a pitch black concrete room with no doors or exists and people are screaming, they could have been down there for years, maybe even decades surviving on their own exrement and the flesh of each other, chewing their own arms off, babbling to each other and breeding one another to bring another generation of feral humans into this hell.

The thermals on the drones reveal what is going on, there are no windows, no doors, no lights, no tables, no furniture, just bodies and people, crawling and writhing on top of each other like snakes in a pit. There is no “rescue” at that point.
gpt
You should have posted the original copypasta instead of this half assed attempt at larping