Dog Nuncio Enjoyer - Fitz's Builds in H40
 Arbites Build - Warhammer 40k: Darktide 

Shock Mines Lone Wolf Arbi has fallen out of favor because 1. mines were nerfed, 2. modifiers that negate mines have been active (Final Toll), and 3. the dog can interrupt things that you can't with shmines, like mutants, dog pounces on yourself, Chaos Spawn grabs by proximity trigger, Daemonhosts with Remote Detonation, and can pin human-sized enemies with annoying modifiers, including Final Toll (red), Contaminated Stims (cringe), and Rotten Armor (stinky).

Some comfort can be moved around, but the one hill I'll die on is Rebreather. DO NOT try to be fancy and remove Rebreather. With the amount of tox bombers the AI Director throws at you in a H40 game, you will always wish you had it. Otherwise, you can swap stuff around for 'Shielded Plates' or 'True Grit'.

This version runs Nuncio because Break The Line loses a lot of value into Final Toll, but you can practically swap both it and Nuncio whenever you feel like it. I also wanted to showcase a build with Nuncio and this works very well.