Glorious Turian Thread!
Recommended Build for Glorious Fat Turian Havoc, plus color him yellow and black like a bumblebee
Skipping cyro blast is silly, you don't need to sacrifice an excellent debuff with a low recharge for all that fitness when you have stimpaks. At the same time, I've never found a point in maxing stims, fitness can be helpful in some situations, and this build is intended for gold and plat alike, on plat getting hit by DOTshit is rampant and a bit of extra fitness provides a buffer for when you don't want to waste a stimpak.
Generally I use cyro blast, shoot a few times, then Havoc Strike all the things until the things are dead! There's kind of a rhythm to it but the most important step is to kill things
With the disclaimer that I hate posting my stupid gameplay videos anywhere except the solo threads especially since a lot of solo videos are more about soloing than about playing any specific kit, here's some BumbleBeeTurian Stories on Platinum:
Super Tryhard Havoc with Venom
Lolcolyte and Havoc Strike
GraalHavoc (this one is old and bad but why not)
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Glorious Turian Saboteur
Three builds:
Sick Turiansnipes Saboteur - Black Widow and Valiant are also good choices
Saber - you can go hipster and use the Argus, the Valkyrie, or even the Mattock if it so pleases you. Or you can walk on the dark side and use Arc Pistol.
LolHomingGrenades - They are better than you think
Shoot things, sabotage, homing grenade, then shoot shoot shoot some moar until stuff dies. Glorious Turian passives. 
Some Gameplay Videos, caveat emptor.
Bad Sniping (UUG with randoms)
SaberSaboTurian gold solo
OnlyUseMeHomingGrenade plat tryhard solo
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The Ghost is that turian that usually sits at home in the timeout corner while the other turians are out doing stuff. My only recommendation is don't skip Overload because that is silly.