Interference Runner
 Veteran Build - Warhammer 40k: Darktide 

With this build you can take your placement as either rear guard or pointman. As long as you have ranged enemies shooting at you, your stamina will continue to repeatedly replenish which ultimately renders you immune to anything (except for sniper shots) coming your way. This build requires that you be very wary of any and all melee focused enemies because they will end up killing your groove.

The best way to play this build is to wait until you and your Killteam acquires too many ranged targets to eliminate in quick succession, and they will ultimately render you suppressed and unable to route them.

This is where YOU shine as a Veteran. Your role from there will be to lay down some shredder frags (if you still have any) and charge through the heretics alone. They WILL immediately target you and you alone since you're such a badass. You will be able to get into the faces of specialists and ranged enemies alike and dispatch them with both hip fire and melee. Yes, you can come face to face with them and still come out on top. The fire rate of the Columnus will stunlock any ranged and specialist enemies.

When you find you've become too overwhelmed by incoming fire you can pop Infiltrate. But note by the time you do have to use it, your team will more than likely have begun dispatching the enemy with their backs turned focusing on you. 

This build can make or break a run depending on the user. Ammo consumption is decent and to save ammunition you can sprint at ranged trashmobs to eliminate them with melee. These are all the tips I can give you until Fatshart either nerfs autoguns or Veteran skills again. Until then, have fun.

Kill the heretic.