Contra is a freeware modification for Command and Conquer Generals: Zero Hour real-time strategy game and one of the first mods for this game. It adds many new units as well as numerous new upgrades, new general's powers and buildings. It also adds new sounds, maps, bug fixes, enhanced graphics, and other effects, as well as three new generals.
Great mod with an intresting unit set and new options, such as Anti-superweapon defenses, cyborgs, and super-nukes.
One of my rapidly becoming favorite teams is the US Cybernetics General, who might as well be called SkyNet.
Great mod