The End Of Days is a freeware modification for Command & Conquer: Generals Zero Hour. Our mod adds a new playable faction - Russia, and greatly improves the original three with new units, structures and special powers!
Most realistic mod for Zero Hour. It includes Russian forces. Also you can find S300 AA Missile System, Tomahawk Launcher, Abrams Tanks etc.
Shortly, I like realistic mods and this is best.