Another map made for a request. (EVILGRIIIINS)
See it here:
Hope it works well, there are no noticeably bugs so far. But I had quite a fight with some semisolid brushes. So it might not be that stable.
The stairs of BSP hell
Download it here:
https://www.dropbox.com/s/7acs3jfq4w1d2 ... t.rar?dl=0