As it is currently, there is absolutely no reason to use any composition of classes besides 4 marauders for HM operations. Not only is their dps excellent, but with 4 mara's the group can roll "constant" bloodlust to maintain max group dps. The best solution is to put bloodlust on a global cool down for the group analogous to battle rez.
Hey noob, my raid team cleared all content last night without a marauder. I think you should just look into being like us and using classes with other raid utility. We used a sorc/sniper/PT/jugg and between the snipers DMG reduction bubble, the sorcs off healing, the PT's taunts and juggs taunts/reflective dmg we made that content look like a joke.
Keep your BT we used raid utility to the fullest!!!