Microsoft have extremely high expectations for Halo: Reach, as they fully expect it to outsell Activision's Call of Duty: Black Ops.
This is quite a lofty goal, as last year's Call of Duty: Modern Warfare 2 broke all kinds of sales records, and Activision are expecting Black Ops to surpass Modern Warfare 2.
"More than 34 million people have bought [a Halo game] and those people are going to want to play Halo: Reach. We're going to do incredibly well," said Stephen McGill from Xbox UK.
The game's out Tuesday, exclusively on Xbox 360.