Support Zealot
 Zealot Build - Warhammer 40k: Darktide 

Comfy support build.

Martyrdom is good for damage gating and saving medicae uses for teammates who might need it more but do keep health as full as possible when its not inconvient for others because were just looking to stay alive no matter what while still helping with eliminating the big threats like crushers safely and quickly to make up for your lack of horde clear and using stealth to quickly and safely complete map objectives/puzzles

if martyrdom fails you we use until death/rev to avoid dying, refill 25% before it wears off then hit shroud as a panic button to escape and regen toughness/reposition

the main point is to be stay alive even when our whole team goes down by taking advantage of our stealth to revive teammates and snowball from a 1vE to 4vE in as short as possible.

i also use this in deadside to safely bring reliquaries to the door so we dont have to worry about hauling it around the map and also to safely comeplete POI solo to decrease the chances of running out of time

Devils claw/zarona is also a good alternative, i prefer devils claw to CK when i dont need to zip around as much, like deadside and the bolter pistol is just crazy fun to use