Super Mario Odyssey on Nintendo Switch also saw a nice increase from 13th to ninth place, likely due to the ongoing MAR10 day sales.
Sony argues that this fact makes Microsoft's promises to keep Call of Duty multiplatform irrelevant.
Microsoft believes that, with some optimisation, Call of Duty: Modern Warfare 2 and Warzone 2.0 should run just fine on the Nintendo Switch.
According to Microsoft, despite its acquisition of Activision Blizzard, Game Pass prices will not be raised.
The shooter will carry over maps and modes from the 2022 instalment, while also introducing its own new single player and multiplayer content, a new report has claimed.
The second season of Call of Duty: Modern Warfare 2 and Warzone 2.0 is almost here, and with it, a new battle pass.
When Call of Duty: Modern Warfare 2's Season 2 update goes live in February, it will also bring back the fan-favourite Hardcore mode.
Call of Duty: Modern Warfare 2 and Warzone 2.0 will be kicking off their much-anticipated second season in the middle of February.
They're followed by Madden NFL 23, God of War Ragnarok, and LEGO Star Wars: The Skywalker Saga. Call of Duty was also the best-selling game for the month of December.
The UK's Competition and Markets Authority has announced that it is extending its deadline to investigate the deal between Microsoft and Activision Blizzard.
Sonic Frontiers and Mario + Rabbids Sparks of Hope on the Nintendo Switch re-enter the charts thanks to discounts at UK retail.
Meanwhile, to no one's surprise, FIFA 23 was the best-selling game of the year in the United Kingdom.
Battle Royale has also seen some changes, with more Buy Stations and the chance of multiple circles appearing reduced from 33 to 15 percent.
Available until December 19th, the trial provides access to four multiplayer modes and three maps, including the new Shipment.
The action-adventure title climbs back into pole position, with FIFA 23 and Call of Duty: Modern Warfare 2 taking the next two spots.
Infinity Ward's shooter also topped US charts for the month, followed by God of War Ragnarok, Pokemon Scarlet and Violet, and Sonic Frontiers.
It sees Captain Price, Gaz, and Farah venturing into an underground section teeming with enemies, waterways, and much more.
A spinoff campaign focused on Modern Warfare fan favourite character Ghost is claimed to be in development.
Black Friday discounts saw a number of other games seeing increased sales as well, including the likes of Mario Kart 8 Deluxe, Animal Crossing: New Horizons, and more.
In its newest defense against Sony's statements, Microsoft has claimed that Call of Duty players aren't that special, and don't do much to drive platform adoption.