This Classified Sentry build has been made with the idea of not being a damage build but a utilitarian build for the rest of the squad.I provide damage buff with the marks, a strong oulse to boost my squad's crit hits and large flashbang to help control enemies and rushers priority.
I would have love a Holster with Skill Haste instead of CHC but on the only one I had the main stats were too low it would have cost me too much in Div Tech to optimize it.
When there is a Reclaimer in the group, I swap my Stamina mods with electronic ones, always with 3% Skill Haste, to get astronger pulse and shorter cooldowns of my skills.
I use the Tactical Link on large groups of rushers (think Amherst's or Madison's waves of shotgunners) or bosses (cough... Hunters... cough). I swap it for Recovery Link if there's no Reclaimer of when needed.
I still struggle with precise headshots and tge MDR reticle on PS4 but I'm getting used to it and better every time.