FPS titles dominate Microsoft's listings for the most-played games on Xbox LIVE for 2011, with Call of Duty titles occupying the top three slots.
Activision's Call of Duty: Modern Warfare 3 sold just under two million units during its first five days on sale in the UK, according to data released by Chart Track.
More than 20 million map packs for Call of Duty: Black Ops have been sold during the first nine months of 2011, Activision revealed last night during an earnings call.
Activision is hosting a Halloween Double XP Weekend for both Call of Duty: Black Ops and Call of Duty: Modern Warfare 2, set to run October 28 through to November 1.
The Call of Duty Elite beta will close at 8pm today, Activision and Beachhead Studio have announced.