When marked enemies (Red) drop below 50% health, they gain the following bonuses: 40% attack speed 25% movement speed 90% stagger duration reduction 50% hit mass Suppression immunity Enemies that are guaranteed to be marked (100% chance): Dreg Rager Scab Rager Dreg Shotgunner Scab Shotgunner Dreg Gunner Scab Gunner Scab Mauler Reaper Crusher Bulwark Captain Enemies with a 10% chance to be marked: Daemonhost