With that same logic call of duty has failed too. Because every game is drastically different than the original that came out 10 years ago. You need to understand things evolve and one idea may work but maybe you want to expand on this idea or that one. I think bungie vision is guardian Killing aliens with friends or just killing your friends in crucible at the same time with loot. And tell me that hasnt changed now has it? What's changed is how you do those things but to it's core it's the same things and they are expanding and experimenting with different ways to do those very things. Am I missing where they lost their Vision?