https://www.pcgamer.com/call-of-duty-black-ops-4s-pc-launch-day-sales-are-more-than-double-last-year/

Call of Duty: Black Ops 4's launch day digital sales on PC have more than doubled over last year's Call of Duty: World War 2. Publisher Activision describes the sales as a "new franchise high".

This is the first Call of Duty game to be released on Battle.net rather than Steam, which had previously been the series' home for a long time. You'll probably recall that this is the first Call of Duty not to launch with a five-to-seven-hour campaign mostly composed of shooting lads in corridors, too, instead packing a battle royale-esque Blackout mode that was the subject of a high-profile beta on PC.