In what may be the first sign of Microsoft putting its mark on the popular franchise, players on Xbox Series X and Xbox Series S consoles were today greeted with this massive, take-over ads for Call of Duty: Modern Warfare 3 preorders when turning on their devices. Thankfully, it appears the ad only appears once and is easily dismissed, but I can't help but wonder if it'll pop-up again tomorrow once enough time has lapsed.
UPDATE: I just want to add, in our testing, we found that the pop-up does at least respect account age restrictions. If your console automatically signs into an under-18 account, the Call of Duty: Modern Warfare 3 pop-up will not display.