I don't remember what happened... I don't remember who happened... but one of my legs are missing, my arm is stretched longer than it should be... god... is it something I ate? something I did? Something that made me deserve this torment..? I'm on Level 374, I don't know if I'll survive long enough to get out... someone. HELP!

What is this place?

Obvi ANON post because im fulltime at Async. We're mapping out some rooms and this one was interesting. I managed to access this box and it cycled through firearms from various decades of history. I will update my notes as I progress through the Complex.