This is probably one of the coolest gamemodes currently on GMod. The gameplay is fun, and the music is funky fresh. That being said, I have a few suggestions, that I figure would do better here than in the comments.
-melee weapons should be nocollide to prevent getting stuck
-its own pause menu, for managing gamemodes and whatnot (F3 doesnt work for me for whatever reason...)
Aside from that, this addon is great!