Thanks for posting a beta first. This map has the same issue as wobluda. Did you have a leak and seal it by putting a box around the map? Did you run a full vis? If you type gl_showtris 1 at the console, you can see almost the whole map is being drawn from everywhere in the map. In areas like the first screenshot, almost nothing should be visible. r_speeds should be super low. In the second shot, there are areas that aren't even in play that are being drawn (under the stairs). All those polygons should be completely removed by the compiler if the map is built properly. A couple more shots of problem areas are attached.
You need to use some sun lighting or something. The current lighting is too bright/uniform. I may make a pass through and nitpick texture alignment issues and whatnot, but you need to get the vis issue fixed before you do anything else.
