Not trying to throw shade here but the wishender bug is affecting invader damage torwards other guardians in gambit. You can't be one shot in pvp but you can be ohk by an invader on the enemy side of gambit. The bow is also currently doing more damage than intended in pve leading me to believe that the Broadhead perk my be potentially proccing itself multiple times when the arrow hits a target. At least this is my speculation. Maybe pass this along to other dev's and take a deeper look at the Wishender bow?