Honestly, sunbreakers aren't that bad for me. I was running voidwalker in mayhem today and doing pretty well. My problem is the nightstalker. If you're in a match with 2 or three night stalkers on the other team, it is very frustrating. The are constantly tethering you, not letting you use any abilities, even gliding or double jumping. (really, who came up with that one?) They deal so much damage to you once you're tethered, it's impossible to fight back. I'm not saying they need to be nerfed or anything, they just frustrate me.