Easy H40 Arbites
 Arbites Build - Warhammer 40k: Darktide 

Main attack:

Push > Push attack (uppercut) > Light attack (diagonal strike down)

Repeat

This combo is OP for no reason. Especially that uppercut after the push. You are literally going to spam this constantly as fast as you can. Your curios will refill stamina quickly and any stamina not recovered will be replenished with the RAPID MOVEMENT talent (kills restore +5% stamina)

Horde clear:

Activate your special, hit an enemy, split the crowd then you will just use the same combo as above, but this time you will add a 3rd Heavy hit after the 2 hit combo. This will give you a heavy horizontal strike to stagger enemies in front of you. Only use the 3rd hit when safe to do so. The sequence will be as follows:

Push > Push attack (uppercut) > Light attack (diagonal strike down) > Heavy swing (horizontal)

Repeat

Bosses:

You must have

- Castigators Stance (+20% Strength)

- MONSTROSITY HUNTER (+20% DMG to Monstrosity)

- KEEPING PROTOCOL at 30 stacks (+30% DMG to Monstrosity)

Step 1: Target boss with your dog

Step 2: Pull out your bolter and prepare

Step 3: Blow your dog up to stagger boss

Step 4: Activate CASTIGATORS STANCE

Step 5: Dump your whole mag of 15 bullets into the bosses FACE / HEAD / WEAKSPOT

Congrats, you've just deleted 50% - 75% of its health bar, depending on your shit accuracy.

75% - 100% if it's a weakened version.

Build:

(DR = Damage resistance)

Your dog will keep your DR up constantly just by killing any enemy which is does on its own. Killing specialist enemies will give you DR. Hitting 3 enemies with one attack will give you DR. Thats a lot of DR just for playing normally without having to consciously go out your way to activate them.

When your in a pinch use CASTIGATORS STANCE (70% DR) it will replenish all toughness and you almost have 100% DR when you take into account the stuff above helping with DR.

The build is simple and extremely efficient. It lacks a bit of ranged enemies because the bolter takes a while to swap to. I often use my dog or hope teammates will take care of ranged enemies. I'll use my bolter also when I have the time but obviously not when I'm under pressure as it's a solid 3 seconds or so to pull out.

Such an easy build, it's my 'go-to' Havoc build for 30+ and ive completed and clutched plenty of times at Havoc 40 with this. I've had 3 bosses hitting me at once while I'm in a shit storm of enemies and barely taken any damage. But you wont believe it til you see it yourself. Having a build is half the skill though, you still have to know how to play.

Good luck.