User blog comment:Dr. Frohman/Modern Warfare/Black Ops Crossover?/@comment-1913529-20111202152202/@comment-1646362-20111202171455

@EagLE: Not necissarily. Reznov's design was based on Zakhaev's. It's the same franchise, owned by the same company. Sure, different companies make the games, but if Activision tells them to do something, well... They're going to have to do it. Both companies would work with each other if it contributes to the well-being of the entire series.