Added fog to the skybox of:
- Crash Course
- Deatch Toll
- Last Stand
(it's the same skybox for all of those maps)

Some moar minor adjustments.

Minor visual fixes.

The Sacrifice Skybox Update: Added fog and fixed the sun position.

Changed the Hard Rain (during daytime) skybox.

Replaced the Dark Carnival skybox, with the one from the "FancySkies" Add-on.

Added some exposure to the Dead Center Skybox.

Added fog to the Dead Center SKybox.

dwadaw

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