Coralrock a2

- Reworked the backlot of mid
- Submarine now properly exits the play space before warping out.
- Increased the submarine cap zone size to allow for more leway
- Added clipping to some doorways around back mid to avoid getting caught.
- Removed small ammo from atop the raised ground at sub entrance
- Simplified routes at the back flank.
- Added cubemaps to areas with bad/broken reflections on models.

- Map is now packed after it somehow missed the step prior.

- Fixed missing clipping brush on sub entrance that enabled an out of bounds exploit
- Cleaned up brushes in transition connector.