Hole b3c

various art-pass changes

-added a little window to stop you from being able to access the upper lobby area from the lower doors.

- a ton of changes to the maps layout and vertical scale and moved the forward spawns further back to try and make it less snowbally

-moved the upper door facing second from the middle building to kill the sightline a bit more
-artpass on the building lower area and killed a sightline toward middle with some barrels

-added signs around to make it easier to find which direction is forward
-opened up the windows on the building on mid point to try and make the whole area less cramped and hopefully make the building feel more like it's a part of mid and not just an alternate flank route
-added a little wall on the inside of the middle building upstairs to cut of a disgusting sightline now that the window is bigger
-added little ledges on the side of the last cap point to make it easier for slower classes to jump to
-made the darker areas less dark and the brighter areas less bright
-added clip brushes on all the stairs (this is something that i should have put in the b1 version tbh i just forgot to)
-actual cubemaps now

just repacked the file