Snipidy snip snip
 Veteran Build - Warhammer 40k: Darktide 

The build leans into ranged, but the executioner stance is also spammed in order to gain situational awareness, even if it means switching back to melee after its use. It helps me know where the big boys are at, if I have any crushers or maulers around, that I can quickly manage with a crack grenade, from a distance.

"Chink in their Armor" & "rending strikes" help me bypass some armor if I miss my headshots. 

The Kantrel MKIX low fire rate helps me keep the shots on target. If the fire rate goes to high, you might start missing headshots due to adrenaline & tense situations.

This weapon is to be used on non-carapace armored units. You can start putting shots into Carapace armored units, if you're at a safe enough distance to hit some headshots before they get too close & you're out of Krak grenades, otherwise, its Krak grenades, and shooting weakspots for everything else. 

Atrox Mk IV -> those 2 blessings synergize, as well as connect to with the "Trench Fighter Drill" passive and the "Serrated Blade" passive for bleed stacks. 
Bleed stacks on quick, together with power and crit chance, due to the very high attack speed you'll be having, and all the above empowers the Special Melee Attack, which is also a quick combo. 
You have high stagger, and if you do the special action after the Blessings and Bleed build-up, you shred trough everything like a coked up panda on a bamboo forest. 
*The Combo is 3 lights, 3 specials, then more lights, more specials - with the occasional heavy.*

The build is intended to be played in the middle to the back of the team. You eliminate problems for the tanks, and anyone out on the "front" of the Coherency range using Weakspots. 
Spamming the ultimate allows you better situational awareness. 
Krak deals with Bosses and Carapace armor, and the Hatchet is just there to make a mess out of anything that goes trough the ranks.

Enjoy!