The Xbox Live activity for last week, and the numbers are from Major Nelson, as always.

Xbox 360 Top Live Titles (based on unique users)
1 Call of Duty 4
2 Halo 3
3 Guitar Hero III
4 Tom Clancy’s Rainbow Six Vegas 2
5 Gears of War
6 Rock Band
7 Army of Two
8 Forza Motorsport 2
9 Tom Clancy’s Rainbow Six Vegas
10 FIFA 08

Top Arcade Titles (Full Versions)
1 Brain Challenge
2 DOOM
3 N+
4 Assault Heroes
5 UNO
6 Worms
7 TMNT 1989 Arcade
8 Bomberman LIVE
9 Sonic The Hedgehog 2
10 Marble Blast Ultra
The above arcade list is based on full versions purchased.

Original Xbox Top Live Titles (based on UU’s)
1 Halo 2
2 Star Wars: Battlefront 2
3 Counter-Strike
4 Fable
5 Battlefield 2: MC
6 Call of Duty 3
7 Ninja Gaiden Black
8 Doom 3
9 Rainbow Six 3
10 Conker: Live Reloaded

It’s interesting to see Rainbow Six: Vegas 2 jump above the ever-popular Gears of War, and even more interesting to see the original Rainbow Six: Vegas hanging around at number 9. Unsurprisingly, Call of Duty 4 remains king.