Modern Warfare II introduces several design improvements and changes to the series gameplay, such as advanced AI systems in the campaign and co-op modes, water physics, swimming mechanics, and an overhauled vehicle system.

PlayStation 4 Cross-Gen Edition: Includes a cross-gen version of Call of Duty: Modern Warfare II playable on PlayStation 4 and unlocks a free digital upgrade to play on PlayStation 5. Please note: The game disc will be required to play the PlayStation 5 version.