I really don't like how there is Domination in the Mercenary play list. I pretty much just want to play TDM type of games without having to deal with organized teams, which is what the Mercenary play list is perfect for.
Putting domination in there just encourages people to not play Domination and instead play Team Deathmatch where you kill the people running towards the flags. I don't think that is fun for people who want to play objective gametypes and its not fun if you want to play pure TDM either.
I don't want to play objective games, you shouldn't be forced to play objective gametypes by playing the mercenary play list. A separate play list will also help make sure that people don't play the game type wrong.