I see a lot of guides about how shotguns are good at taking down the detain bubble, and they are. But what if you could have a sniper, like black hammer (the giant crystal sure does look easy to hit), to dps the boss? You can with SGA. Just as with detain bubbles in VoG, hitting Quodron's detain bubble with SGA counts as a miss. You can literally hold down the trigger until everyone's bubble is gone.
SGA doesn't get very many moments where it shines and this is one of them.