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.
Designators - advanced defense structure for Air Force General.
Calls an A10 to fire at a target.
The way I c it, they're only good for countering artillery, since the A10s take so long to fly in and fire.
those fire base looking things makes me wonder, hmmm