Kett: - The ascendant is literally the only enemy in the game that can synch-kill you AND can survive a cobra rocket to the face if it's shielded with its orb. So yeah, fuck them. - The anointed kinda suck dealing with as an adept because of their shields and they hit hard. - The fiends are just so comically large that as long as you have something that shreds armor they're not that big of a deal. - The fucks that can cloak can eat ALL the dicks.
Remnant: - Most of their units are weak, but then you get the nullifier (which is nearly impossible to kill solo since it needs to be flanked and their attacks go through anything) and the destroyer, which is both shielded and armored.
Raiders: - Half their units are either shielded or armored, so if you have an engineer or a sentinel you'll manage, but an adept is going to suffer. - The hydra looks intimidating but it's just a poor man's destroyer.
Nullifier = 2 flak cannons to the face and that's game.
Fiend and Ascendent can suck a bag of dicks for having permanent kills. ---