Past 72hr Jam Entry koth_derrick a005a

-Fixed roof noclips
-Tweaked skybox
-Added platforms to buildings next to mid
-Adjusted health and ammo pickups
-Added an entire freakin' building

Too much to list here, really. All of the main pieces are in place, and the map is playable.

TODO:
optimization (some more func_details, areaportals, etc)
Rework skybox
Add more detailing
Add detail to other buildings