EA releases 4 C&C games as open source. (EA Has Done something..Good? and Praise Worthy? And not awful?) - eviltoast
EA Has Done Something Wonderful That Every Major Publisher Needs To Copy
kotaku.com
The first four Command & Conquer games are now officially open source

The Original Command and Conquer, Red Alert, Generals, and Renegade have all been released under GPL licensing to the public.