i have a question for you, why should rupture be good in carnage spec? even if the massacre buff is up, massacre is better then rupture because it ALWAYS have a ataru proc damage, i was using rupture before, and i dont now, my rotation is the next one :
When pulling (with a burst to start the fight, your tank will probably want to protect you) :
Charge jump -> Battering Assault -> Massacre -> Berserk -> Gore (while in CD, same as Berserk) -> Ravage -> Force Scream -> Vicious throw if up, or Massacre
with this pull burst, i can pull a really big dps, and for the rest of the fights, i use the Noxxic rotation, i hit around 2500-2800n dps with 69 gear's, what do you think?