Havoc Armor Deleter
 Veteran Build - Warhammer 40k: Darktide 

Havoc BS based around deleting armor and high boss damage, so you only die to captains instead.  Good survivability with 274 non-havoc toughness at triple +17%.  SUPPORT ULTILITY - [Shout with toughness, +56% Revive Speed, +15% base damage to allies, +15% damage to team, 1.3x end multiplier to team.]  You are the primary Specialist/Elite killer and boss damager.  Since this build is based around killing Specialists and Elites I find Confirmed Kill to be more than enough toughness regen, especially with the base toughness damage DR.  Non-crit revolver headshot one taps all Specialists (besides mutie) when pinged, and all human-size Elites with a crit headshot.  FOCUS TARGET (FT) TRICKS - [When a pinged enemy is killed you are set to two stacks if under two.  This is a bug with Focused Fire increasing the stacks cap by 2.  Redirect Fire (RF) stacks are additive, if you had 3 stacks of RF, and kill an enemy with 2 stacks of FT, the duration is refreshed to 10 seconds with 5 stacks.]  Consistently pinging enemies between charged sword hits for 2 stacks of FT is still 1.1x damage to you, and your teammates, attacks.  This build cannot clear large small enemy hordes, only hold its ground.  You will notice using this build in the Psykanium that enemies are often left with less than 10% hp after some hits, this is where FT comes in, climbing over the breakpoint with just 2 stacks increasing your damage 1.1x.  The Kraks scale with the extra base damage plus FT really well, you can 4 nade monstrosities in havoc with all of your stacks up.  You can also one tap reapers with a crit headshot.  The only 4 enemies that can not be consistently one shot with the sword are Maulers, Reapers Bulwarks, and Crushers.  The Revolver can 2 shot Reapers and Maulers.

Example of how to play - Get 4 stacks of skirmisher up, for +25% base damage, with the +15% on Elites for +40% base damage.  Fully charge a heavy for 1.6x damage, and ping the enemy with FT for 1.1x to 1.3x damage before striking.  A strike that would have done 100 damage now does 291 against an Elite. (does not include other damage buffs or armor) Crushers are pretty easy 2-3 tap, Maulers are 1-2 tap.  Shoot armored enemies at range with guaranteed crits (The revolver has a base 21% chance that doesn't show up with mods) for free damage before engaging.  Reload when possible and get a quick kill at point blank every once in a while to give your teammates +15% base damage.  Target Specialists over Elites, as they are more disruptive to your team.  When you see an Elite swarm, just throw a few Kraks and watch them disappear.  Make sure to have a pinged enemy die before the 10 seconds is up, 60% damage is kinda crazy.

I end up just fighting daemonhosts when I see them in auric since you can kill them with 3 kraks before they even move.