Call of Duty: Black Ops II is off to a hot start. GameStop president Tony Bartel said in an email to Bloomberg today that the speciality retailer sold more than 1 million copies of Treyarch's new shooter at its midnight launch alone.
Additionally, analyst Michael Olson estimates that Black Ops II shifted between 6.5 million and 7.2 million units in day-one sales, which is on par with Call of Duty: Modern Warfare 3's day-one haul of 6.5 million units in 2011.
The most successful Call of Duty launch to date is Modern Warfare 3, which generated $775 million in revenue during its first five days last year. Activision has not announced official sales data for Black Ops II yet.
For more on Black Ops II, check out GameSpot's review.