A special video kindly made by Persun, showing you how you can change the order of missions in Challenge mode.
Link to FinalBig: Moddb.com
Contra is a freeware modification for Command and Conquer Generals: Zero Hour real-time strategy game. It's a big project started in 2004. 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.