This is a build that puts as many set mods as possible onto one weapon so that you have access to the set bonuses without hamstringing your weapon build.

With the exception of [Helios] (Prime), the sentinel you put this in is up to your own personal opinion. My personal recommendations would be [Carrier] (Prime) which allows for the use of the Ammo Case and Looter mods, or [Shade] (Prisma) for its Ghost and Ambush mods.

This build can also be put onto either version of [Sweeper] and achieve the same effect. Doing damage with your sentinel is not the desired effect and is in fact discouraged, due to the fact that if your sentinel is attacking enemies, those enemies are more likely to attack it back, and if your sentient is dead, you lose the buffs. This has the side benefit of freeing up a mod slot on the sentinel itself in the place of assault mode or the companion-specific attack mod if you still have it, which you can now fill with whatever mod you see fit.

This build does not work as well on rifle weapons like Deth Machine Rifle (Prime) or Artax because Motus Setup is for shotguns only, and as there are no rifle-specific mods, using Sweeper (Prime) is recommended. But if you don't want/ care about [Motus Setup], then use any weapon you like. :)

You are able to have a copy of a specific mod (i.e. Vigilante Armaments) on both your primary and here, and you will get the non-set bonus stats (i.e. multishot, fire rate, ammo mutation, etc.), but you will only get ONE bar of set bonus (5% chance to upgrade crit vs 10% or 25% bonus pet dmg from slash proc vs 50%). The mods themselves also do not need to be leveled at all in ordered to get access to the set bonuses. If you have a mod here but not on your primary, you get the set bonus even if you have no mods in the set equiped in your primary, but you DO NOT gain the standard boosts (i.e. multishot, fire rate, ammo mutation, etc.).