My response was aimed at Bud, pointing out a ConVar problem, I don't know if I'm going to make it sandbox for now.

I dont know how ı can do it but ı can wait until you make new mode for sandbox dude

Hmm, that's weird. I'll look into that and see when I have some spare time, but if you're looking for a workaround atm, you can edit the original icegrenade.lua and change one argument like this: "SWEP.CanBuy = { ROLE_TRAITOR }" and also add detective if so needed.

ttt_icegrenade_traitor, setting this to 1 doesn't seem to give the traitor access, but it recognizes it as a valid CVAR

Please do same mode for the sandbox gamemode