u/Far-Ambition-9486

I don't know what map is used in this video, and I want to find out, but no one responded to my post on the gmod reddit, so I wanted to see if anyone could find it here.

So I was watching one of dark corners videos and I saw a map I thought looked cool, but I dont know what map it is, its the second map shown in the video where most of the video takes place in.