Share the Goon (support Stim scum)
 Hive Scum Build - Warhammer 40k: Darktide 

Suck at game? no problem, just buff the ones who are actually good!

PLAYSTLYE

This build consists of Stimm Supply paired with the Strength/Rending and Ability Cooldown to provide high damage, carapace Anti-Armor, faster ability uptime, and corruption heal & immunity. the 15% rending and 25% CD nodes in the stim lab are free pick nodes meaning you can swap to something like finesse or crit chance to make your weak spot hunters happier or go for the 75% CD on Melee/ranged kill if you know what your team will be primarily using and want to squeeze a little more CD out. I personally found rending and 25% CD to be the most neutral for a generalized buff that everyone can benefit from.

ABILITY

The Stimm Supply just got a lot better with 1.10.2 as Chemical Dependency can now be triggered by entering the supply radius giving better synergy between the ability and keystone. Stim supply is also an extremely powerful ability as it's one of the few true support abilities such as Voice of Command and Chorus of Spiritual Fortitude. Stim supply however is like passing out red, yellow, and blue stims every 60 seconds which is already powerful on it's own, but using the augment Practiced Deployment we can force the Cooldown for stim supply to end early regardless of CD remaining by having our stim come off cooldown. Using Sample Collector alongside Blackout nades with Pocket Toxin and the stim supply Booby Trap augment we can reliably apply quick AOE tox to huge hordes letting us drastically cut down on the stims 75s CD, sometimes even getting it back instantly on a good horde.

WEAPONS

Our weapons need to be able deal with unarmored/flak in a timely manner, and for this we go with Branx MkIII Dual Autopistols with Blaze Away and Pinning Fire as our blessings. Since we're not using desperado and are relying purely on Pickpocket to maintain ammo we can use both these blessings to maximize our damage and provide much needed strength which provides extra cleave to chew through hordes. 

For our melee it's a lot more open ended but Chirurgeon's Mk IV Bone Saw benefits the most as either toxin coating counts towards sample collector meaning we can get melee kills to get our stim supply back faster. The brittleness coating is also great for getting hits on either bosses, captains, twins, or crushers so teammates running pure damage builds can hit just a little harder. (getting a crit on DOT toxin coating applies 2 toxin stacks instead of 1. more testing required for the brittleness coating on weather crits give more brittleness stacks or not)

STRENGTHS

This build is extremely powerful with classes that hit hard to get the most out of the Strength bonus or even DOT builds such as flamer zealot or Infernus staff Psyker since both strength and rending benefit DOT damage. On the other end, players that are using supportive abilities such as Voice of Command Chorus of Spiritual Fortitude Loyal Protector have higher uptime meaning you can stay alive to loop your abilities back on themselves. Even though we won't be taking desperado or going purely ranged damage, you'll still be able to put out lots of DPS and may even find yourself at the top of the scoreboard in total damage. Since Stim Supply also heals corruption from current wounds and makes you immune to corruption damage while under it's effects, it's a great alternative to Beacon of Purity when playing on blight spreads modified havoc missions. (Enemies in havoc also apply corruption on melee hits that do damge to your HP, courruption immunity SHOULD prevent this but requires more testing)

WEAKNESSES

As with all builds there will be weak points that you cannot reliably manage yourself. Dual autogun and the bone saw heavy attacks can do some decent damage, but struggles against hordes of carapace or even boss DPS if the boss is mainly focused on you. You can also mistime a stim supply deployment and not benefit from the effects of practiced deployment. You can also buff your team too much and booby trap won't catch any enemies since your team killed all the enemies too quick meaning you won't get any easy CD from sample collector. Finally this build is extremely reliant on team coordination and even communication so you are applying the stim effect to the team instead of dropping it in a dark corner, leaving your squad without CD rate and strength.