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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Considering it can be easily replaced by a high rate of fire auto rifle with crowd control and life support, yes, it needs a slight buff.