I did the nightfall on all 3 characters yesterday, and I saw something a bit strange. Given void burn was on, my load out was atheons epilogue, praedyths revenge, and corrective measure. My buddy brought the arc and solar to pop shields while I burned through them all. Well you know how a knight puts up that black shield for a moment after his arc shield is gone? The corrective measure shoots through the black shield as if its not even there. Giving precision shots and body shots. Don't believe me? Try for yourself. Mine is completely maxed. So any corrective measures out there tell me if you can shoot through knights black shields. I wonder if every raid weapon has a hidden perk?