Arbites
7.5-15% Weak Spot Damage. Weakspot Kills also ignore Enemy Hit Mass.
3.5-5% Strength for 3.5s on Hit. Stacks 5 times.
Ranged hits add 1-4 stacks of bleed to enemies.
10% Critical Chance for every 0.3-0.45 second while aiming. Stacks 10 times. Discharges all stacks upon firing.
Rashad because I like rashad and it has good horde clear with brutal momentum. This build functions with any melee weapon so I picked my favorite.
Make sure your dog attacks boss first, then maintain bleed stacks with bolt pistol. Use break the line off cd to trigger Kill Order. It's important for dog to initiate the bleed so dog talents boost the damage. You can't override the source of DoT when you extend it's duration.
You can take Keeping Protocol instead of Target Priority and Street Smarts, but when you have 150% dog damage from Execution Order and 50% from Kill Order, extra 30% has diminishing returns.
Have fun before it's nerfed.