Proot

Proot b6c-alt2

Last test went well, despite the unpacked assets.
No major changes yet.

Changelog:
- un-onewayed the windows
- messed around with the heights of the huts at mid to give a greater advantage to attackers from the flank
- changed the walkable bit of the hoodoo to be a platform so it's a little nicer to play around
- moved around some ammo and health
- made it nice and fall-y