The exotic perk is technically not really an exotic perk. They just changed the archetype. If they left the impact the same or even just a little lower than the original, it would be exotic. As of right now, the gun is still pretty good, but not at an exotic level. Just buff the impact when front lines activates. That's all the gun needs.
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Honestly, the impact could do with a slight buff, but this thing is a beast now. In fact I think it can compete with Last Word in terms of close combat TTK.