The problem in your map is that there is only one light source; near the ceiling. It casts a bit of light; but it won't light your entire map. You will need to add more light sources in your map so you actually have a level that's visible.

Some other points:
- Don't build maps in a big box. That's a bad idea; it will increase compile time and reduce game performance; instead try to fix the leaks.
- The shake is too powerful and lasts too long.

Thanks man. I'll contact you if we have more problems.