I haven't played the game, but I still have a feeling that the exclusivity thing didn't worked like they had hoped for. If Respawn, EA and Microsoft were aiming at a Call of Duty 4 hype level, it didn't make it, plain and simple.
Pointless exclusivity? Maybe. It did help Xbox One sales, but not by much. And it didn't reach its entire audience, so it might as well be pointless.
Why COD4 was successful? Because it was available on every console.







