I guess I should make a real try hard post:
1)Cobra. No **** that is the most effective way. Stupid use of consumables but hey who am I to judge, I missile rocket troopers.
2)Any projectile weapon. They ignore the DR from flipping. On host you should always have a phantom negating power or an acolyte or scorpion if you struggle with them. GPS, Venom, Adas, Striker, etc all do pretty well against them as well but are heavy.
3)Powers like Stasis and Sub Net can completely lock them down, sub net is a little particular to use you almost have to be at mid to close range with her or force her to flip first then net her. Reave, Dark Channel, any AOE power especially nades when you don't target her directly and bring up the power blocking bubble are also good.
4)Projectile powers to make her defensive bubble then headshots especially with Drill rounds will eat her for lunch.
5)Kite them and pull them up a ladder for easy headshots without the flipping garbage.