EDIT: Compiling works now. ETA Wednesday, Dec. 10
So. I was copypasting the new finished and detailed last from RED side to BLU side. I sealed off the map, optimized, and created a much better skybox.
Then I went to compile.
And I saw this.
https://dl.dropboxusercontent.com/u/84556731/sunshine/Screenshot%202014-12-06%2002.41.13.png
My heart sank. For those who do not know: basically, there is a maximum limit of brushsides that you can compile in the Source engine. The new detailed version of Sunshine has gone over this limit. How much, I can't determine; but all I do know is I can't compile now. I'm stuck.
Effectively this will bring all development to a halt, until I can figure out how to convert brush-based geometry to props through an old esoteric program named Propper. And considering I have no idea how to use Propper, it might be... a while...
I'm really sorry. I guess I went overboard detailing this thing. I just wanted it to look as good as it possibly could but now I'm in a position that could delay RC3 by weeks if I don't find someone who knows how to fix this. I'm really lost right now. If anyone is out there that knows how to use Propper, please contact me. Thanks.