Using TTT weapons in a custom gamemode?

I’m making my own custom gamemode (or trying to) and I’d like to use the weapons from TTT in it. How can I install them onto my own gamemode? I’m fairly sure it should be easy, but after playing around a bit I got as far as getting them into the game, but with no sound or proper picture.

Any reason why? They don’t do anything special and it’d be much easier to get an ordinary swep pack that isn’t confined to one gamemode and has a ton of TTT-related variables inside

Ok, can you recommend one please?

Sure thing, play around with some of these: