Doomguy at home
 Veteran Build - Warhammer 40k: Darktide 

I wanted to try and make a build using the double barrel and chainsword that would benefit from a lot of weapon switching. I'm not the best at the game but I have run this build somewhat successfully in damnation, the purpose of this build is to turn hordes of walkers, elites, and specials into a fine paste.

There are options for bosses, carapace enemies etc. but it's not the best at handling them, the full bore blessing and block efficiency I've found has helped a bit with bosses but it is definitely not what the build is meant to do. With weapon specialist (and always prepared) as long as you get 3 kills with the chainsword you will always have a shell ready to go and a guaranteed crit, with manstopper it's pretty effective at helping with hordes and is a pretty easy way to proc weapon specialist for the chainsword, which with cleave and shred is pretty good at ripping and tearing through any large group of demonspawns lie in front of you. I've used this build with bloodletter and flechette replacing shred and full bore respectively and stacking that much bleed on stuff can work relatively well and is an option.

If you like weapon swapping, cutting down hordes, and kiting bosses for your teammates with a ridiculous amount of toughness then this build is one of the funnest I've found to do that. 

Rip and Tear, until it is done.

(I have not yet played this build on auric or havoc so I cannot vouch for it's effectiveness there, I do plan on doing that at some point and will be putting the videos in here but if you do try this build out there let me know how it does! Thanks for taking a look, I'm pretty new to this game having picked it up on sale during skulls but am loving it and it's scratching those buildcrafting parts of my brain that Payday 2 did so I'll be putting more of these up in the future)