Spec Ops Psyker
 Psyker Build - Warhammer 40k: Darktide 

The purpose of this build is to be an all-rounder DPS machine.

Heavy attacks with the blazeforce sword do a shocking amount of damage to carapaced enemies (oneshots maulers, 2-3 shots Crushers) and the block-push can stagger literally any non-boss enemy, even crushers and ragers.

The las rifle is surprisingly great at sniping out long range specials like snipers & bombers and with infernus and the very high crit chance can do respectable boss damage by maxing out the burn stacks, just be economical and tactical with your ammo useage and it won't be a problem.

When ever you're up against a large number of enemies enter "sicko-mode" by using Scrier's Gaze significantly increasing your damage, speed and durability.

Though speaking of durability, you don't have it. This build relies a lot on dodging and using deflector to block stray shots (and barrages) as long as you're alert and quick on your feet you can completely block entire firing squads of reapers and gunners with the deflector blessing.

Disrupt destiny synergizes with this build as you won't be using your blitz much if at all (both lightning & assail can be taken with no other changes) and the various bonuses it gives will help your damage as you'll be critting lots and aiming for weakspot hits, oneshotting most enemies in front of you.

Why no soulblaze?

Soulblaze requires too many inefficient talent detours for not enough payoff and the damage soulblaze does just isn't good enough against the targets you won't just be one-shotting anyway.