importing weapon questions!!

Basicly wat i want to do is

for my hl2 mod i want to have the ump from css to replace the players smg but i want the npc's to still have the smg's

also if you pick up an smg it gives ammo for the ump

but i dont want the ump model to replace the smg model, i want the ump to be a new weapon just if the player tries to pick up normal smg all he gets is ump ammo...

if you understand can you tell me how to do this... or a link to a DECENT tutorial that will explain this in detail :razz:

thanks all =)

76% i beleive its easier to make a whole new game or a whole new gun, i dont kno about the amg giving ump ammo part

could i make it so that the ump uses same ammo as the smg?

what do you mean make a new gun??

as in make a new model and stuff??

like a gun where u can have the same effect but it will be another gun

BUT what i did see on CS:S is a shotgun that other people used but i saw the shotgun from HL2 they where shooting it too! so im all weirded out

So you dont know how too

or where any tutorial is??