52.5-60% Weak Spot Damage (Enemies with Bleed Stacks).
12-24% Rending on Enemy Weak Spot Hit for 3.5s. Stacks 5 times.
14-20% Strength for 5s when every pellet in a shot hits the same enemy.
Up to 14-20% Damage on Hit (Staggered Enemy), scaling with Stagger.
This is my close combat commando build, throw smokes to close the gaps on gunners and shooters and either stab until all gone or whip out the shotgun and blast that line away