The Fanatics Fest event takes place this weekend in New York City, and as announced previously, Call of Duty: Modern Warfare 4’s multiplayer will be playable at the event. In addition to that, Infinity Ward studio head Mark Grigsby and Activision marketing executive Tyler Bahl will sit down for a conversation about the game where more news or details could be revealed. In addition to the developers, the panel will feature NBA superstar and Call of Duty skin Kevin Durant,…