SANTA MONICA, Calif.--(BUSINESS WIRE)--Activision’s Call of Duty^®: Modern Warfare^® II continues to smash franchise records as the new blockbuster has crossed $1 billion in worldwide sell-through following the first 10 days from its release on October 28, 2022. The new mark tops the previous franchise record of 15 days set in 2012 by Black Ops^® II.

Player engagement continues to soar as Modern Warfare II players already have played more than 200 million hours and over 1 billion matches across PlayStation, Xbox and PC platforms in the first 10 days following its release on October 28.

Modern Warfare II Crosses $1 Billion Sell-Through in 10 Days, Fastest in Franchise History | Business Wire

Great start.
It has been helped by the higher price point though.

Massive launch. And there's no CoD next year so this has a good chance of being the best selling CoD.