I uploaded the wrong version yesterday because I'm an idiot.
Doom 3's art style has been a pretty significant inspiration for me over the years, especially the caverns levels at the end. This is probably most readily apparent in my recent map DM_Subterrane.
I decided to remake Doom 3's D3DM4, "The Edge 2", for HLDM. I call it a remake, although to be honest it isn't a perfect 1:1 clone; the only thing truly intact is the layout. Still, I would say it's close enough to count.
All weapons are present, and there are 24 deathmatch spawns.