Zealot
Critical Hits ignore Hit Mass bonus from Armour. {crit_damage} Melee Critical Hit Damage.
2.5-4% Bonus Critical Chance on Chained Hit. Stacks 5 times.
70-100% Critical Weak Spot Damage.
10% Critical Chance for every 0.3-0.45 second while aiming. Stacks 10 times. Discharges all stacks upon firing.
Tried to make this work for some time. What finally did it was putting all the stamina related perks on the curios to balance out the missing +3 stamina curio.
For melee you can pick anything with high base crit, shred or similar. I like the eviscerator as it blends mixed hordes while staggering ragers etc.