Microsoft announced that “Halo 5: Guardians” has generated more than $400 million worldwide, making it the biggest launch in the franchise’s history and the fastest-selling exclusive Xbox One release. “The newly released sci-fi shooter pulled in more than $400 million worldwide between game and hardware-bundled sales,” reports Variety, noting that the new release “also brought the lifetime earning for the series, which spans all the way back to ‘Halo: Combat Evolved’ for the original Xbox in Nov. 2001, to over $5 billion.” In its first week of availability, “Halo 5” was Xbox One’s most-played game, racking up more than 21 million hours of game play.