Made Versus Survival more fair on the 3rd map, and did some other minor improvements

Made finale easier and removed exploit in 3rd map

Fixed fatal versus bug in finale, and attempted to add better optimization, as well as other minor improvements

Made campaign easier, especially for people playing in singleplayer, and custom music works as it should now

Made loads of improvements such as improved optimization and Versus compatability on the 2nd and 3rd map

Added new loading screen

Added custom music to the finale. (It's extremely quiet, and it's not my fault)

Minor bug fixes, and made sure that campaign can be beaten alone

Fixed fatal error in 3rd map

Fixed some bugs in the survival versions of the maps