More and more players across the globe are answering the Call of Duty.

Six and a half million copies of the latest game in the series, Modern Warfare 3, were sold in its first day on store shelves. That makes it the fastest-selling Call of Duty game yet, and publisher Activision states that it’s the biggest launch in entertainment history. Modern Warfare 3 brings the trilogy to an epic conclusion, and offers new multiplayer and co-op modes. We’ll let you know when the first downloadable content pack is revealed.