Xbox Live, the world's most intense unified online gaming service, just hosted its hottest weekend ever. This past Sunday, November 2, Xbox Live set new usage records. On that day, 83,652 unique users spent 262,268 hours on the service -- or more than three hours per user. Sunday's most-played Xbox Live game was "Tom Clancy's Rainbow Six 3" with 24,478 gamers signing in for battle. At one point, 6,731 gamers played the game simultaneously.