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.

2024's Modern Warfare is essentially perfect.\n\n 2024's MW2 takes this established formula and adds a few tweaks that fit the sequel's tone better. Everything feels more realistic and grounded, especially player movements like crouching, crawling, and sprinting.