The first Call of Duty game that will be made available on XBox One backward compatibility is Call of Duty Black Ops.
Activision and Microsoft are screwing gamers by having a 5 years old game sell at full retail price of $59.99 in Canada.
Edit: That was in Canada ...http://marketplace.xbox.com/en-CA/Product/Call-of-Duty-Black-Ops/66acd000-77fe-1000-9115-d80241560855
The US is $39.99 http://marketplace.xbox.com/en-US/Product/Call-of-Duty-Black-Ops/66acd000-77fe-1000-9115-d80241560855