Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
30-60% Enemy Hit Mass for 2s on Kill.
4.25-5% Strength for every Enemy you Stagger. Stacks 5 times.
14-20% Damage against Suppressed Enemies, 28-40% Suppression and 28-40% Recoil on Close Range Kill.