Activision announced today that its first new multiplayer map pack for Call of Duty: Modern Warfare 2 is now available from the Xbox Live marketplace for 1,200 points (just under $18 in Canada)

The new stimulus package adds five multiplayer arenas to the top selling game which has gone over $1 billion US in retail sales since its launch last November.

PC and Sony PS3 games will have to wait a few weeks as the stimulus package release is being staggered across platforms.

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