THE CLAWWW
 Skitarii Build - Warhammer 40k: Darktide 

Clearing a horde of trash? Chordclaw. Fighting group of elites? Chordclaw! Fighting a horde of crushers? CHORDCLAW!!! Swipe to clear hordes and regular elites and hold for single target damage

You have so much capacitance regen that you can pretty freely spam Chordclaw with almost zero problems. The only real issues you might run into is closing the gap on gunners(depends on skill level/how good you are at moving around), bulwarks eating your charge while spamming into a horde or endless crusher waves where you cant regen fast enough to continue ripping their heads off. It is easier to keep up your charges on higher difficulties as there are more enemies to kill to generate capacitance faster and spam even more Chordclaw. Do not be afraid to use your charges on dense mobs of trash as you will almost instantly regen that charge. Even if you do run out of charges, the transonic blades do more than enough damage to see you through to your next swipe.

I know there isn't a blitz upgrade in this build, I personally don't think the other 2 blitzes are super great and I don't really use the skull outside of hacking so I don't see the need to spend a point upgrading something i don't really use. If you really want to upgrade the skull, drop Ammo-Cell Augury and grab Artificer Servo-Skull 

The Branx Mk XI Phosphor Blast Pistol is set up how it is because i really only use it to pop the heads of trappers and the occasional bomber. This is not a special sniper so let your teammates do their job while you focus on slicing whatever is in front of you into tiny ribbons. You can swap Showstopper for Surgical if you want a "meta" option, i just think randomly exploding enemies is funny

If for some reason you dont feel tanky enough, drop stamina regen for %toughness on your curios. ive tried out both and the stamina regen felt better to me purely cause im lazy about stamina management outside of combat and it mostly covered for my mistakes inside of combat

I haven't tested this in havoc yet and that will be the truest test in my opinion. I have completed some auric missions already with little difficulty outside of the situations mentioned above.