Braced Heavy IX
Build for Darktide

Use ult with autogun to delete crushers as well as to clear rooms of shooters. Heavy Sword IX is very flexible and to properly utilize it, you'll need to learn when to use the strikedowns. You can do strikedowns with it by chaining special attack, sprinting, or starting a ‘new’ heavy chain by qq cancel, block cancel tech. Crucian Roulette currently also applies to melee weapons, so you can empty your magazine to vastly increase crit chance of your melee weapon.

If you have a zealot/ogryn in the party who specializes in bleed, you can try the following build changes. Switch lvl 5 to Faith Reastord, switch lvl 10 to Bloodletting and switch lvl 30 to Invocation of Death. Doing this vastly increases your damage as you should now be able to proc crits and bleeds reliably without relying on crucian roulette to artificially bump up your crit chance as long as your ally is applying bleed to enemies.