[Ammo Case] for +25% Capacity and 33% conversion which fixes some weapons issues with ammo.
[Looter] & [Vacuum] for loot.
[Guardian] to help with shields.
Rest is survival mods.
[Synth Fiber] to help survival and adds the ability to pick up health orbs at full health. Synergies with mods like Equilibrium for energy management.

Recomended Vigilante mods on Sentinel weapon.
Assault Mode to make use of the sentinel weapon Verglas -- (1 forma viral heat primer build here)