Ogryn Gunlugger -Hard Mode Karnak Tested
Build for Darktide

This is by no means the perfect Ogryn build, but this was to mainly catalogue the build I used to complete the Hard Mode Damnation Karnak boss fight.

Mainly, this build is used to spam the gun lugger ability. Most people will take Light 'em Up to deal more damage, but I took Hail of Fire for the rending because of the sheer amount of maulers, crushers, and armored ragers they kept throwing at us. 

Frag Bomb is definitely a major recommendation, as it is your pause button for when things get dicey. 
(I recommend, if you have a pre-made team, to have a Veteran take Field Improvisation to let you refill not only your ammo, but also refill grenades and heal corruption.)

Curios, once again, are not perfect, but they are the ones I had on. If you are specifically spec-ing your curios for the fight, replace Gunner Damage Reduction with Bomber Damage Reduction, as there are no gunners that spawn during the fight, but many bombers.

Melee weapon is up to you, but with how much I was shooting, I didn't find myself using to often, only when I needed to reload. I recommend something with a lot of crowd control and cleave, as the "enhanced" poxwalkers have a higher hit mass AKA your attacks won't cleave as much as they do against "normal" poxwalkers.

Finally, stay focused and determined. It is easy to get discouraged and angry. You will lose, it is inevitable. But you must temper your losses into knowledge that will win you the fight.

You must persevere, as it is your duty given to you not only by the Ordo Hereticus, but by the God-Emperor Himself. 

You will win, as you are a Warrior!