I must say that is aesthetically pleasing to fly around in, one recommendation I'd give is to put some fade distances on the road (and any other) overlays, also there appears to be a detail texture missing that you appear to have used extensively on your concrete textures. Other than that it is a beautiful level of detail all around, nice work.
Thanks keef for the feedback. I've added that detail texture in b4 and also taken out the massive water animation. https://dl.dropboxusercontent.com/u/2644783/maps/slaughtered_b4.7z this is playable but the water won't show up right until it is downloaded through steam. As for adding more infantry areas, the map is honestly complex enough even for a full server of 52, and really just struggles with being too complex for the more usual low player counts. The one major change I'm still contemplating is getting rid of the major downward ramp inside the tunnels and having the tunnel continuously flat, with the south entrance being farther up on the hill. I'll play around with fade on the road overlays and see if I can get something looking good.
someone said the tunnel needs to be brighter. i agree with that. brenodi blends in very well in the tunnel. and as a visual aside i will say that the main grass/rock textures seem a little bit stretched
the water is a new animation that's a rather large file. When downloaded through Fastdl from the server it takes too long for many players and generally ruins the start because the teams will be lopsided or empty because many players are still downloading after the comm vote ends. When the devs push an update through steam the texture will show up. heres how it looks: