Gm_Fork_Night
Edit of the original gm_fork which can be found here
http://steamcommunity.com/sharedfiles/filedetails/?id=326332456
Ive done a mistake while packing the map, I renamed the .BSP which breaks all cubemaps, you can fix this by entering "mat_specular 0" in the console, this will turn off cubemaps which are causing the missing texture to appear.