in a multi mob encounter with mobs of the same name, you can't effectivly track who has what debuff.
if mob1 has HM on it and mob2 dosn't, the combat log dosn't distinguish the differance on mob1 or mob2. so the issue is that it wont be accurate.
wtih mobs of differnet name you don't have a problem.
Right, but would it be feasible to keep track of the Hunter's target, and possibly base it off of the mob's health? It's the only variable I can really think to keep track of who's mark is on whom. For instance, fighting Lady Vashj during the second phase; a Coilfang Elite spawns, and Hunter_01 marks it. 45 seconds later, another Coilfang Elite spawns, and Hunter_02 marks it. Now, if the raid has been DPSing the first Elite, it will have a different current health than the second, and thus giving a distinction between the two.