I think they should make us upgrade our weapons by using them, similar to D1. And if people are so bent on keeping cores use them to fully upgrade a weapon to a masterwork. If people want to use cores to skip the upgrading process of using the weapon then fine, let them. So in this process I'd get a new gun and I can upgrade it to level 9 by simply using it or if I wanted, I could use cores to upgrade then and there. Then once it's a level 9, I'd have to use cores to fully upgrade it to a level 10, a masterworked gun. This way, we won't use cores upgrading weapons we don't know if we really like if we didn't choose to. This also keeps the cores if people are so bent on keeping them and uses them in a similar sense people are use to. Keep the way in which we obtain cores the same as it is now, weekly clan rewards, random drop, scrapper bounties, etc. Oh and the new gunsmith bounties I've heard about should still be implemented as well. Thoughts?