You know that's Activision's deal, not Bungie's, right? Activision has a deal with MS for CoD and they have a deal with Sony for Destiny. So "you get cod shit early" isn't an excuse, it's the honest to god reason for it. Not to mention they want to market Bungie to Sony fans, who most likely have never owned a Bungie game, as opposed to MS fans who have obviously already heard of Bungie and know what they are capable of.