I don't know, they'll get brain upgrades and stuff, but knowing that an AI-computer is there to help then I guess one at a time. On the other hand, maybe the dummy controllers don't need AI computers.

I think the browncoasts are an elite fighting force that broke free of the coalition and kept their mind normal. However they installed an implant the brain can use to contact and coordinate them.

In the zombie cave mission the description sayes the clone tubes habe been rigged, hinting they are not supposed to "churn out half baked bodies" mabye the clone tubes are ment to make coaliton clones?
The Ronin i think are just a bunch of rebels with awesome hairstyles and suprisingly good guns that are trying to protect there planets resorces.
Browncoats a heavy branch of coalition
dummys...to be honest i have no idea

I think the browncoats are a spritesheet of Bubs that was implemented due to a lack of specific units and have no "official" backstory.

Well lets just make one up.

Or just wait for bubs to propose the one he no doubt has to Data who will probably discuss it with Prom and then implement it into the game?

Honestly folks I don't think I'll ever understand the fascination with obtaining "backstory" on this game; either A: wait for it to happen officially or B: get the hell over it