The Heretic Blower (it blows up heretics)
 Skitarii Build - Warhammer 40k: Darktide 

With this build, the fully charged M35 Magnacore Mk III Plasma Gun does about 1000 dmg or more in an area about the size of a small grenade explosion, easily clearing entire packs of Dreg Shotgunner or Scab Bruiser and any lesser enemies. Although you do need to hit an enemy for the explosion to happen, shooting the ground does nothing. But it's also great against Monsters, with about 6k dmg on a headshot without even using a stimm. Great way to use it is to target the highest health enemy inside a horde to kill it and everything weaker around it too. It will do about half the HP of a Crusher in damage while knocking them down too. 

Critical Power Overload is a very nice thing to have when you can clear the bulk of a horde with 1 or 2 charged shots, triggering Power Overload and then switch to your Branx Mk III Arc Maul to clear the electrified survivors with the extra wide arcs from Enhanced Voltaic Arcs .

You could go Redline Capacitors instead ofc, it is very easy to keep up but it offers no raw damage for the weapons.

Flensing Protocols is absolutely terrible however, because venting the plasma gun will lower your stacks quickly. 

The curio setup offers over 200 HP, paired with Galvanized Coating , this allows you to survive sudden bursts of dmg like 2 stacked Poxburster . Allowing you to pickup your team afterwards with Medicae Servo-Skull .