Dirty Harry (My Zarona)
 Arbites Build - Warhammer 40k: Darktide 

You are Dirty Harry.

You wield a ridiculously powerful hand cannon and this build buffs that hand cannon even more and ensures that you delete every single elite or special that you aim at.

You'll get a ton of benefits for killing these elites (it'll generally take a single bullet), have a larger ammo pool, your Zarona will hold 6 instead of 5 bullets, your reload speed gets buffed and when you crit (and you will with the Surgical blessing) you'll get up to 80% rending from blessings and talents.

Your shooting gets buffed when you kill stuff, your reloading gets faster and then your reloading buffs your shooting.... it's a wonderful cycle of large caliber death. Use Castigator stance if you get swarmed and just keep firing that damn hand cannon.

Gearwise max out the Zarona, mobility as the dump stat (you'll get +10% movespeed every time you kill an elite...which will be extremely frequently).

The Arbites mace was simply the first one I looted in the first few rounds, 76 on every stat and I went for confident strike which allows you bonk your way out of a swarm via heavy2-light1-heavy2 spam. Very smooth, decent toughness regen and combined with castigator stance will ensure you don't get rooted into a corner whilst a horde of scum sucking maggots tries to wail on you.

Trinkets are cookie cutter good choices, extra toughness and combat ability regen with your choice of damage resist.

This was written on day1 of the arbites patch with Heresy high intensity/shock gauntlet as the hardest difficulty. The build worked just fine there and as long as your headshot skills are decent and you max out the Zarona....I doubt damnation+ will be an issue