CCC Says: "Last year's XCOM: Enemy Unknown remake of the 1994 turn-based RPG was a critical success. It combined top-notch strategy, both on the battlefield and through base management, with insatiable replayability. The criticisms were minor, but the developers at Firaxis took them to heart, and thus embarked on a mission to raise the stature of the series. So instead of improving the formula with a sequel, they decided on an expansion pack, but not in the expected fashion. XCOM: Enemy Within is not a separate plot with disjointed storylines in an alternate setting. Instead, it is an upgrade of the original, adding new classes, new enemies, new resources, new missions, new customizations, and a new threat to the XCOM organization."