Call of Duty: Ghosts executive producer Mark Rubin has a lot on his plate. In just two months, he's heading up the launch of one of the (if not the) biggest titles on two next-gen game consoles, not to mention the four other platforms it's landing on. He's got his team at Infinity Ward to manage, as well as the teams at several other studios that are assisting in the development process. And on top of all that, the two big next-gen versions of Call of Duty: Ghosts are headed to hardware that "literally just started showing up" at his company's offices. Rubin explained a