I've said it before, I'll say it again. What they need in order to make Cerberus a fun and playable faction again is to buff Nemeses and Guardians and nerf Dragoons and Turrets, and possibly dramatically increase the number of the latter. I'm not against a Phantom nerf, but only if it comes with an Atlas buff -- otherwise the entire faction becomes a joke, what with the other three having Primes, Banshees, and Scions.
Nemeses are a joke as they are. Yes, they can put you in a predicament if they shoot you as you're dealing with Dragoons and Phantoms, but this only shows that the difficulty they bring to the game derives from the difficulty of other units. And that's only on Gold — on Bronze and Silver, they are utterly harmless. Give them a little more health, a sidearm or some other close-range, defensive attack, and/or TC. That will un-trivialize them.
In exchange, reduce the number of AND nerf Turrets. They are ruthless machines of death that can decimate a team in its entirety and render them unable to stand back up. With tougher Nemeses, there wouldn't be such a need to have SO MANY GODDAMN TURRETS AROUND. Seriously, it's been insane ever since they decided to add more Engineers. Other than having fewer per round, strip them of their shields. Seriously, no need for a freaking turret to have a shield. It's not a human being or a sentient piece of machinery. Its feelings won't be hurt.
Also, buff Guardians. If the team has anyone who can strip them of their shields, they're trivial. If the team has a sniper, they're trivial. If anyone has a weapon with AP, they're trivial. If they're not looking directly at you, they're trivial. By buff I don't mean give us more, I mean make them a little tougher. Maybe a little faster as well.
In return, slow down Dragoons and, if you're feeling generous, give them an Eviscerator or a Talon instead of their Hornet XXXVIII. There's seriously no escaping these guys the way they are.
Someone at BioWare should play as a sniper on Gold now and then so they realize it'd be better to play against two competitive units than a walking joke (Guardians) and an almighty hellspawn with a vendetta against all that's good and beautiful in this world (Dragoons).