Pretty epic looking map! I loved all the intricate details - the grunts floating off in to space when the walkway blows up, sleeping dude and the quake jukebox, the ogre body, etc.
Things I would suggest:
- in the blue room with the slipgate, it looked like I should have been able to pick up the power cube - I thought I was supposed to be collecting those?
- the air ducts were confusing for me; I appreciated some navigation aids like ambient sounds, the odd voreling, but I still was not sure if I found the right exit and was getting tired of running around
- overall I felt a bit lost, like too much of the map was opened up right at the start.
- it would benefit from more monsters, I think, or at least having the current monster encounter spots be more of a fight. I can appreciate wanting to have a map that's mostly about exploring, but it left me craving more action :-)
Here is a demo of my first attempt:
http://www.quaketastic.com/upload/files/demos/Titanbeta1_demo_ericw.7z