User blog comment:Deathmanstratos/RUMOR: Activision may switch Call of Duty's Lead Platform to PS4/@comment-5358304-20140319032359/@comment-1187559-20140319133410

But. Acti has never said anything about Xbox itself. They just have a load of contracts with Microsoft. And for all these major events Microsoft supported them, so they're going to use their console. Like if Sony backed one of the events, they'd likely use a Playstation.