Hehe, well, I'm not going to download this one, but its a good start.

Some suggestions for your next map:

• Don't you love it when the floor, wall and ceiling are the same texture with no proper alignment at all :P? Maybe spice it up a bit and use a floor texture for the floor, wall texture for the wall and ceiling texture for the ceiling.

• In the real world, lights have a light source. Now the light_environment is fine because you have a sky, but those indoor lights seem to be coming from nowhere, there should be a simple light fixture to make it 'look' like light is coming from them. If you search in the texture browser for "light", you can select like a fluorescent light texture and make yourself a light fixture.

Anyways, good luck with the next map! I'll be waiting .