This is game mod for the Zero Hour game. It modifies your game and should do no harm to the game.
With this mod each side gets a "Secret Lab" where they will be able to build things like USA ICBM and Tomahawk Storm, Nuke Hunter, GLA Toxin Arrow and Airport, and a host of other goodies. You gain the ability to build these through the rank system that came with the game. In this mod ranks go up to level 8. It won't show past 5 star rank but will inform you when you have been promoted. With each promotion from 4-8 you'll have the ability to build a variety of special weapons, etc. Check the readme file for full details.