Ultimate Spam Support Zealot (AKA, Soccer Zealot)
 Zealot Build - Warhammer 40k: Darktide 

The build: 

• This build is focused on keeping both you and your team alive by staying in the frontline swinging your melee as much as possible to build up your Combat Ability charge as fast, while also multi-tasking between staggering Most specials (Especially Bulwarks.), and being generally the most annoying zealot to deal with as you hold off any horde/boss by yourself.
   

invocation of death

reduces the cooldown of your ability by 1.5s on melee crit per target. this means using high cleave weapon like  eviscerator or ix heavy sword paired with crit talents can get your ability completely refunded in seconds while cleaving horde. dagger also works with this build; it has fast attacks and bonus crit allowing it to trigger cd reduction very often, especially with lacerate blessing to ramp scourge quickly.

Why chorus?:

is a very strong ability- it gives immunity, replenishes and gives bonus max toughness, staggers anything nearby including bosses (they can be pushed off ledges for *instant* kills), and gives solid damage bonus afterwords. use it whenever you see toughness bars low or a group of enemies that need staggering, then go land melee crits to get it back off cooldown.

Beacon of Purity:

• People will want to suck your pp if you pick this up obviously, and goes without saying that it is broken against Beast of Nurgle.

Why the Indignatus Crusher?:

• The Indignatus crusher is being used for this build because I personally like it, but also for its stagger and alt fire that ruins a Bulwarks', Crushers', Maulers', and Rager's day. You will want to charge swing as much as possible to abuse the impact on any enemy and for hordes you will want to light attack, heavy attack, and repeat for maximum horde efficiency.

Why the kantrael Heavy Laspistol?:

• It does decent damage to Unyielding enemies, can almost one-shot some Maniacs (If your aim is pinpoint on their head), you will barely run out of ammo most of the time because you are not a gun zealot, and you can pull a sneaky trick for when you are done swinging your melee you switch to the Heavy Laspistol to go into a sprint faster. Generally a good all-rounder ranged weapon and my best friend :).

Immolation grenade?:

• good for throwing at mixed hordes to clear out the trash and soften the armored targets. It's a perfect combo with your Combat Ability (Chorus)

your job 

is to use chorus in tough fights then melee against hordes to refresh its CD very quickly. use revolver to snipe specials or punch holes in armor. if you have chorus up and a group of specials/elites, a mixed horde, or a boss approaches USE IT. it is one of the best abilities in the game for minimizing health loss during hordes and for turning the tide of a difficult fight and this build makes it come back off cooldown quickly. if your allies are not following up on your chorus stuns and eliminating the targets, consider throwing an immolation grenade before you use chorus so that the fire can dps everything while you apply stun.