Yes, COD Modern Warfare is on Xbox Game Pass.

Yes, Call of Duty is free on Xbox. The game is available as a part of the Xbox Game Pass subscription service.

Activision games are not currently available on Game Pass. However, Microsoft has announced that they are working with Activision to bring their games to the service in the future.

Activision has not announced any plans to come to Xbox Game Pass. However, they have been supportive of the service and many of their games are available on it.

No, CoD MW is not free. It costs $60 to purchase.

No, CoD Black Ops 4 is not free. It retails for around $60.