Problems. I can't remember the name or the author, but I can try describing what I remember.
It was like this:
- For Quake
- DM support
- Industrial style with dark textures (think Rubicon)
- Some slime
- Heavy use of curves
- Some very abstract curvy structures
- By a fairly famous mapper, though he didn't release that many levels
So far, I located Symbiotic Pipe Dream on MPQ:
http://mpqarchive.pauked.com/index.php?view=viewcomments&review_link=17306
But I'm not entirely sure if that's the right one, so if you know of any others that fit the criteria, do post a link!
Or if you're lazy, mock me instead.