Not a bad level. A bit boxy in places, and I did notice a few glitches: the neon sign opposite the purple-lit bar flashes through a cell that's only supposed to be used when the sign is destroyed. Did you use 00_matanim.cog to control it? Using 00_neonsign.cog works properly. Also, I got squashed under the elevator when I moved into the sector shaft and it came down on top of me. Using 00_elevswitch.cog will sort that.
Other than that, a good map with some nice close-quarters opportunities. I especially like your texture selections inside the building.