In a news yesterday we announced that the voice actor of the saga Call of Duty: Modern Warfare , Bill Murray, had revealed the development of Call of Duty: Modern Warfare 4 claiming that having to work on the game's voice acting work. Infinity Ward has, however, denied that he had started the game without dubbing smentirne existence. In a post on twitter has indeed stated: "interesting news today, but untrue. We spoke with the voice actors and then all the affermzioni made are only speculations " .