Microsoft's Major Nelson has released his weekly report of Xbox Live activity today, featuring Infinity Ward's Modern Warfare 2 and Sega's After Burner Climax in the top spot. With one last activity update to be released before the Halo: Reach beta, we anticipate an upcoming fight in Xbox Live list's top three. Bungie's 2010 release Halo 3 secured second place for the sixteenth week in a row with EA's Battlefield: Bad Company 2 closing out this week's three-hole.

On the Xbox Live Arcade list, the collective biomass of classic arcade titles solidified Game Room in second place for a second week in a row while Capcom's Final Fight: Double Impact closing out the top three. Other notable highlights include Ubisoft's Splinter Cell: Conviction jumping from ninth spot to sixth and EA Sports' FIFA 10 overtaking Call of Duty: World at War for fourth spot. The full breakdown can be found at Major Nelson's blog.