restricted weapon for jobs

Hello, I need some help - I make jobs for my dark rp server and it’s quite good, but I’ve come across some problems. For one, I need to know if there’s a way to restrict weapons for jobs; I’m making a head crab race, how would I make it so he can’t buy rp guns from the F4 menu, hwere anyone else can buy pistols, and secondly, does anyone know a good link to how to make custom shipments and making a certain class buy them from the F4 menu? Or add me to steam (RESIST) emolove. Please tell me you’re adding me or you might not get accepted.

I’ll have a look around.

Otheriwse, I don’t know how to solve it.