After a full week of Xbox Live activity tracking, EA's Battlefield 3 has climbed to second place, snuggled between two titles in the Call of Duty franchise for the week of October 31. Topping the list is Call of Duty: Black Ops, which Activision called "the [number one] best-selling title in dollars in aggregate across all platforms in the U.S. and Europe for each of the first three quarters of 2011," in its fiscal third quarter report.

During its investor relations call yesterday, Activision Publishing boss Eric Hirshberg noted that "remarkably" Black Ops and Modern Warfare 2 remained the top titles "before, during, and after" the launch of its "competitor's products." Despite it only being tracked for five of seven days on Xbox Live following its October 25 launch, Battlefield 3 debuted at third on the Xbox Live Activity List, provided by Xbox Live's director of programming Larry 'Major Nelson' Hryb.

Read more: Four Call of Duty titles in the Top 20 »