It's just a shitty weapon pack using the textures and models from CS:GO so it can get subscribers. Default or FA:S would be better than this.
(I tested it in singleplayer)

EDIT: Also, instead of wasting time trying to fix this weapon pack, use that time to remove the halloween update and fix all the other bugs/glitches that are filling TTT.

DOUBLE EDIT: Notice how the weapon pack hasn't been updated since 18 Oct, 2014
steamcommunity.com/sharedfiles/filedetails/?id=239687689

It's just a shitty weapon pack using the textures and models from CS:GO so it can get subscribers. Default or FA:S would be better than this. (I tested it in singleplayer) EDIT: Also, instead of wasting time trying to fix this weapon pack, use that time to remove the halloween update and fix all the other bugs/glitches that are filling TTT. DOUBLE EDIT: Notice how the weapon pack hasn't been updated since 18 Oct, 2014 http://steamcommunity.com/sharedfiles/filedetails/?id=239687689