Shouty Kal
 Veteran Build - Warhammer 40k: Darktide 

perks, blessings and curios are listed in order of priority from top to bottom

its tempting to want to drop the ammo aura for something else to save points, but bear in mind that in an average cata+ run, you can have anywhere between 500-800 elites and specials by the end of the round (closer to 1000 if dogmode on). that is 800% of each player's total ammo capacity over the course of the run and is imo too good to pass up (which is also why I consider the Charismatic talent non-negotiable).

Out for Blood's 3.5% toughness regen works for ranged and grenade kills as well (unstated). firing one light shot of plasma into a dense horde fills up your toughness instantly.

spam your shout anytime there is combat because the bonus toughness lasts for 15secs and the cooldown is only 30 secs. killing 3 specials in those 15 seconds (via Tactical Awareness) means that your shout is back up even before the 15sec bonus toughness duration is even over. this is imo the most broken support skill in the game and multiple shouting vets stack its effects for a grand total of almost permanent +200 toughness to everyone in the party assuming 4 vets.

spamming your ubertag on elites and specials then having anyone kill them gives the team constant stamina and toughness regeneration. tagging a already tagged mob does not overwrite current stacks unless the new tag is of a higher focus stack count. having multiple vets using ubertag on the same target DOES stack the damage multiplier. 

krak grenades 1 shot all ogryns and maulers on all difficulties, and can kill multiple ogryns/maulers if they are clustered together. krak grenades are also disgustingly effective against bosses.

tag an elite/special before firing your plasma gun at it guarantees a kill in either 1 or 2 shots. always fire plasma gun uncharged (left click) as it is more ammo efficient, overcharge efficient and higher dps. at high overcharge, fire 2 light shots, weapon special button to vent once, fire 2 light shots, vent etc. to ensure you have the maximum number of Gets Hot! stacks available during engagements. 

with Power Cycler on a mk 6 power sword, Weapon Special then push attack>light>light can kill a crusher on cata+ if all 3 hits are headshots. 

feel free to remove the +1 wound curio and replace with toughness/+3stam, but i find that in cata+ if everyone runs 2 wounds baseline as per the established meta, healing station heals have to go to the grey screen players as a priority since their next down is a death. having a +1 curio means you can go down once and still leave healing station charges for those 2 wound players who are already on grey screen (which funnily enough happens very often to players who follow the 0 wound meta).