Leveling my MRD, I really didnt have trouble keeping aggro >_>; I played every class in WoW, from tanking high end, dpsing high end, and healing high end. So I usually DONT mark why? I feel its no need to for myself, again why? Because I can SEE when dps pulls another target, so I target swap, and focus hate on that target and repull aggro. This game to be honest, is quite easy to tank in, and usually if a dps says, well why arent you spamming overpower or anything. Ill tell them, if you focus on the tanks target, and not randomly pull aggro from another target, knowing im not tanking it, and then CONTINUE to pull it, then you deserve to die. Dont like it? Kick me and ill requeue, i have instant q, and you dont ^_^; Try stunning the target first, then using your threat combo, it helps