This, this build is an absolute overkill supreme in terms of high-cost low-effect mods. Shield mods on companions? Why? A single Bond mod that speeds up revives in place of Pack Leader is all you need, if you really need to have your companion right now you can just revive them like before. And considering both Fetch and Animal Instinct remain active now even while they’re down, there is no reason to hurry. Damage mods are still very much irrelevant, Bite has a use if you wanna run the one crit damage bond mod on cats to boost your weapons but that’s about it.
My favourite combo is the “Rolling Gunslinger” Mesa, taking the power of Mesa’s Waltz to it’s extreme. The required ingredients are 2 Parkour Velocity Archon Shards (or 1 Tauforged, which is what I prefer) and a mod you never see used, Amalgam Barrel Diffusion (put it on your secondary, not Regulators). With all things combined, Mesa turns from the turret frame she’s known for into one of the most mobile killing machine frames in the game, rivalling even Titania. Once you get used to how much forward momentum her roll gives, you can traverse all but the most maze-like tilesets without ever turning Peacemaker off, shooting everything that moves all the way to extraction.