Don’t know if it’s an actual glitch or an “intentional glitch” to make it harder but heavy ammo will not drop, helped some friends get it earlier, best way to do it is either A, find some one with whisper to help you, or B, rally the flag with Darci as your heavy, save it all for the boss room, use it all up really fast on the bosses then switch to Polaris lance, just use dawnblade/hammers/ arcstrider to clear add rooms