unlock weapon mod

I want to unlock weapon mod as I have DLC.

What do I have to do

I don't want Cheater tag




P.S Sorry my English is not good.

The easiest way I could think of is use MVP and "give all weapons/weapon mods". Since you have the DLC, you can remove MVP and the unlocked weapons/mods will stick. If you didn't own the DLC - the items would auto-unequip and be unusable.

Basically, what Zenamez said. If you see this, I'll try to help you more privately seeing as I can't message you right now