Mostly changes that make my life easier, some gameplay changes, some optimization, and some decoration.
Version a2b:
-Added more nodraw textures on faces that aren't visible.
-Added more props for decoration.
-Tidied up some sloppy brushes.
-Replaced dev textures to proper ones in areas that are for decoration.
-Tidied up the Skybox.
-Removed Sniper sightline from the shutter doors at mid to the left route from spawn.