Honestly I think perks should be part of the mods system. Swappable sights, mags, etc. you could have them be specific to each individual weapon, or entire archetypes, and you’d have to actually dismantle a looted one with the perks to acquire it. Have collections just give an empty version of it where you add what you want out of what you’ve acquired. Maybe limit it to one perk acquired per dismantle. Lord knows we get enough stuff to take apart. At least I think that would be cool... 🤷🏻‍♂️