Glen Schofield, former director of the Call of Duty series, has expressed serious concern about the future of the franchise under Microsoft's leadership. In his opinion, the company's corporate culture may prove incompatible with the teams working on the series in the long term.
Look at what's happening with Gears of War. Where did Halo go? Look at EA, at the big companies - where are the new Strike parts? Where are the other games? Many projects are simply discarded. Unfortunately, when you are absorbed by such a company, you adopt their traits.
It was under Microsoft that crossovers with "American Dad" began to appear in Call of Duty, and many fans moved to Battlefield 6.