Crit Transonic Blades Skitarius
 Skitarii Build - Warhammer 40k: Darktide 

The goal is to use Voltaic Emitter at 2 charges most of the time for the attack speed and AoE weapon malfunction, ideally every ~15 seconds to maintain Voltaic Motivator. The 3 charge effect is nice to have, but will mainly affect cleave targets since Electro-Strike Conduit already electrocutes the first target on crit. Branx Mk XI Paired Transonic Blades has up to 71.5% crit chance with all buffs active.

System Shock stacks up to 40% brittleness and will be triggered by Voltaic Emitter and Electro-Strike Conduit. Branx Mk XI Phosphor Blast Pistol applies a 15% brittleness debuff for 20 seconds that stacks with System Shock. Combined with Foe-Render Creed, you can get up to 62.5% rending on big targets like crushers and monstrosities/bosses.

This build is very damage-focused. You can swap some points around for more defense or utility. Path through Servo-Core Recharge Engine instead of Adaptive Combat Calibration if you want more toughness sustain. I'm using the default servo-skull which I think provides pretty good value for no point investment, but you could invest in a blitz of your choice by swapping out Channelled Motive Force and either Galvanized Coating or Weakness Analysis Doctrine. If you want more cleave, swap one of the previously-mentioned nodes for Shockline Breach Protocol.

If you want to use Chordclaw Strike instead of Voltaic Emitter, it's very easy to transition the build. Just swap out Retribution Conduit and the Voltaic Emitter nodes, then take Voltaic Restoration, Chordclaw Strike, Axial Slash, and your choice of either Satiated Steel or Slice and Dice.