UA can kill. The problem is that the range that is optimal against enemy accuracy degradation makes it niche. PS2 is about advantages, not necessarily the fastest TTK. Otherwise, everybody would only be running SGs all the time.

If you are caught in CQC with UA, you are at a big disadvantage. UA works best when there is a discrepancy in accuracy between you and the enemy. There is no point to big projectiles at close range when every other gun is just fine hitting you with a 2X headshot multiplier on top of that. That is why I think it needs to be a select fire mode for the Maw.

If the Maw had higher damage output like 652-667RPM like the Cyclone or max rate of the Canis then it makes sense to have it as an attachment.