Dakka Vet
 Veteran Build - Warhammer 40k: Darktide 

This build is THE bullet-hose killing machine for every Veteran that's ever wanted to go full Rambo.  The build centers around the Braced Autogun and the seldom used 'Deadshot' talent that boosts crit and reduces sway at the cost of draining stamina while bracing and firing. By maxing out stamina with curios and weapon blessings, the 'Withering Fire' talent boosting ranged cleave, along with 'Executioner's Stance' further boosting damage + stagger and further reducing sway, spread, and recoil, this build enables you to absolutely melt mixed hordes, elites, and even bosses with surprising accuracy along with massive suppression and stagger.

I found that the 'Speedload' blessing (10% reduction in reload speed on close kill, stacking 5 times) along with the 'Volley Adept' talent (30% reload speed reduction on Elite or Specialist kill) are necessary to avoid losing Executioners Stance while reloading, and maximizing overall damage output.

In my testing, I prefer the Vraks Mk II as the best balance of damage, fire rate, and mag capacity. The Agripinaa hits harder and is more accurate, but you don't need the accuracy with the talents, and the lower ROF and smaller mag are poor trades.  The Graia fires faster but has the same mag capacity as the Vraks and does less damage per shot, so again, not worth the tradeoffs.

Because you will be burning stamina while bracing + firing, I found that taking the Tac Axe with the 'Agile' blessing (refreshed dodge efficiency on weakspot hit) is essential for survivability as it allows you to dodge endlessly while in melee.  The Mk VII Tac Axe has the best attack pattern for consistent weakspot hits, so this is my preferred choice.