I always thought of having weapon attachments, each weapon can have a max of two attachments and instead of 10 materwork tiers, there's only 2 tiers, one for each attachment, and these attachments would give the same benefit of a tier 10 masterwork stat. So if you equip an extended barrell it would give you that plus 10 range or whatever it is. Or maybe do like modern warfare is doing and these attachments would give a bigger boost to a stat but there's also penalty to another stat, like the iron grip and iron gaze perks they just added, except there not random. And you could put really hard bountys to earn these at Ada so she stays relevant. and to make her stay relavent, the attachments can have a system that some of the zombie games have where the more you use it the less effective the attachment is, and you would have to go get consumables to repair the attachment. Destiny weapons are the main part of the game, and the weapon system should start evolving more and i think this would be a very cool way to doit.