It's an FPS RPG with loot. No true open-world, definitely no [i]persistent[/i] world, low player count, relatively low gear count (compared to [i]actual[/i] MMOs), etc.. Seriously, right off the bat; any game with a [i]max[/i] count of 12 players isn't- by definition- an MMO. It just isn't. Bungie very specifically says it isn't, any serious MMO player would say it isn't, and the dictionary description of the term "Massively-Multiplayer" says it isn't.