The only answer in the new version comes from 2000 hours of CN gameplay by Darktide Pro
 Veteran Build - Warhammer 40k: Darktide 

Ranged Weapons: Plasma, High Penetration, High Critical Strike Chance, High Damage (including Armored Units), in the case of Double Blessing, fire a salvo of critical shots to kill the Oglin Heavy in an instant, and other enemies are even simpler.

Melee weapons: The first two swords of the light attack of the power sword 6 and 6 are sweeps, and you can attack all the enemies in front of you while attacking quickly, but the first two swords of the light attack of the 3 type are diagonal slashes, which is easy to miss some enemies, and you can learn to use the block reset attack mod (if this part is necessary, you can contact me, I will explain in detail).

Ability: Volley, Dark Tide After multiple versions of adjustments, now a game (the highest difficulty) will refresh 300+ special enemies and elites, so the biggest threat to the team is the special enemies and elites, as the only killing expert in the team, your role is to kill as many special enemies and elites as possible, in the absence of special enemies and elites, ordinary enemies and bosses do not have any threat (recall that your failed missions, is it all because of the attacks of special enemies and elites?). On this premise, salvo is a very powerful ability, seeing through enemy positions, highlighting your targets, increasing your ranged damage, and with the ability to extend the time, you can quickly clear the battlefield of special enemies and elites with the help of plasma.

Accessories: Three toughness, the talent has been pointed in the case of 75% toughness, get a high amount of injury-free, so you have to fill your toughness, the more the better, only rookies and beginners will worry about the amount of blood.