The difference being that the focus is on enjoying playing the game for the sake of playing the game. There are also tons of weapons, perks and visual customization options to unlock, but that's a bonus, not the point. With Destiny, getting those items became the point. And the only way to get those items, in the case of raid weapons and armor, is to literally do the same thing over and over. And saying those are all on the same map is a moot point. You asked for examples of online FPS with more than TDM, and I offered you Advanced Warfare, with a bunch of gametypes, and you focused on the fact that they all take place on the same maps, like every other FPS. I'm talking about new and interesting ways to approach the core mechanics of Destiny.