Great work!
I just list some things that came to mind while testing this
1. It seemed really heavy at many times, i think because of the shadows
2. The original map was better and clearer
3. interior mod took my lightbulbs away from the sub! I have nvidia card and it has some problems with the interior mod
4. I like the stock heads and the clouds! is it possible to mod these things back manually by jsgme?
This will be a great mod, no crashing yet.