What if we could exchange, lets say 3 VoC, at the gunsmith for an upgraded one. It could also cost maybe 10 ascendant energy and/or some kind of synthesis (depending on the weapon type) and some glimmer. This way, if you want an upgraded VoC and only have one, it gives you a reason to grind the VoG. Just a thought. It would give the old raid AND the gunsmith purpose. Any thoughts? The same could be done with armor at the vanguards.