Hack and Stash
 Hive Scum Build - Warhammer 40k: Darktide 

Melee focused stimm support build for Auric+

Light spam with the axe, taking advantage of hyper violence with heavy attacks when applicable: if smaller enemies are low, heavy onto them to gain the overkill damage, then use that into nearby elites for max damage, especially good on ragers/maulers.

Decent crit damage built in, to help recharge the stimm with chem kills (crits apply chem). You can always swap out the crit on the stimm for rending or finesse, likely is a better choice to aid yourself, but crits tend to help the team more so. 

Blackout grenades into clusters of enemies helps hyper violence or just generally killing for stimm cool down, and particularly useful to dismantle gunner groups before closing distance to them.

The axe usually kills things outright, but there's a decent amount of chem spread across the build, but we rely on the axe getting kills itself for battering strikes (cleave node), splash damage (spreading chem) and for hyper violence, but chem is so good and just helps with hoards and stimm cool down.

Drop stimms buffs for team as often as possible, you should be able to rapidly drop 2 stimm crates almost back to back with the cool down benefits on both the ability and the stimm with kills.