Call of Duty: Modern Warfare 2 comes close to perfecting the first MW game. Its gritty gameplay realism is a challenging change from the shielded SPARTAN suits of the Halo universe. Infinity Ward, the studio behind MW2, have built a solid FPS engine and online multiplayer system. They deliver an experience that makes up for the brevity of the single-player campaign. Unlike reviews of SOCOM: Confrontation glitches, MW2 nits are limited to minor balance details such as the super strength of a riot shield, or the absurdity of a hovering Harrier jump jet attack. It's just a game after all.