Test subjects, they're millions in cryosleep. you're part of them, Welcome to Aperture Sciences. You're getting out of cryosleep and try to escape by every possible way to find the outside. But are you alone in the center? www.gladosmapping.weebly.com
Don't know why... but i really think that i already saw this somewhere...
Yes, in the Lone Future Starter Map? It's normal, i use it for inspiration, but i fix it because i don't want the same part for my map.
I guess that was, idk really... there some time since i played Portal 2 4 the last time.