Mike Nichols, Corporate Vice President Of Marketing for Xbox has made the claim that every exclusive title in their 2015 holiday line-up sold in excess of one million units. The games covered by the statement are Halo 5: Guardians, Rise of the Tomb Raider, Forza Motorsport 6 and Gears of War: Ultimate Edition. No further numbers where announced for the individual games.
Of course, it should be noted that anything less than a million for any of these titles would have been a major disappointment.