From Command and Conquer Wiki
The Nod operations center
The Operations Center is essential for commanders to gain access to more sophisticated elements of Nod's arsenal. It features an advanced communications array and related systems that allow commanders to deploy the cloaking field technology, a decoy army, and launch the radar jamming missile, weapons of great tactical importance when launching the Brotherhood's trademark sneak attacks.
Along with the Tech Lab and its subsidiary units and buildings, the operations center is essential for training/construction and deployment of fanatics, Black Hand elite troopers, flame tanks, beam cannons and MCVs, as well as the construction of the Air tower and Venom aircraft and the SAM turret anti-air defense.
