This is the map known as Alien Rendezvous, it is from the fourth episode Plug'n Pray for Duke Nukem Total Meltdown. Now I tried to make this map as close and as precise as it's PSX version but there is no way in heck I'll be able to do so, I'm just glad I have good memory and the ability to memorize layout that enabled me to to remake this map to being near identical, there might be some stuff that are a little out of place such as textures and such but it's not enough to be noticable right away. Anyway, this map is both difficulty and multiplayer compatible, hell you can even use the PSX version's guide to help you out if you need it. As for bugs, I did extensive testing and corrected some bugs such as doors and lighting effects not working correctly, but those are all fixed.
The only real bug I noticed is the lighting effect in the first two rooms at the beginning, both of them use the "Open Door Lights Effect" in combination with the "Split Door", I did this because thats how it was on the PSX version, I did everything I could to correct the shading but I couldn't fix it, perhaps a mapping expert can fill me in on whats wrong, I even kept some stuff that can make no sense for the sake of keeping the PSX "feel" of the map.
This map is infested with Aliens, even on Piece of Cake difficulty it can prove somewhat a challenge.
Anyhoot, here you go, enjoy!