Actually since salerians have a pretty hyper active systems it would stand that your hypothesis would be correct. They'd fight like the husk but likely are way more agile than the husks. Furthermore its likely these types of reapers would be more intelligent than you everyday husk.
I could see the Reapers using these guys to actually do the altering and experimenting on other races. Like, since when a creature is Indoctrinated the Reaper gains control of your mind [and knowledge] they could use all the valuable information Salarians learn to be better at the whole "turning people into horrible monsters" thing. Although, the idea of them acting like Husks is pretty cool too.
Hmm, an attack they do have is that they could have very long tongues. Javik says after all that they used to eat flies. Maybe they could be like frogs.
I love your artwork's style, but I disagree with this one. Salarians are incredibly quick with their brains, but not on their feet, and very technical. I can see them as moving a little more froglike, running with evolved frog-muscled sprinting legs creating things on the battlefield while using fire, frost and electrical attacks.