Hah! Bought and played a C&C game the other day, except I didn't read the little writing on the box that said 'must have continuous internet connection to play'. Pretty disappointed with it, as I used to love playing Command & Conquer (Played the Original C&C Demo over and over for so long, then bought the Domination Pack.) Played not all, but most C&C games (including Renegade). The worst part was actually not being able to base-build, since C&C was always (for me anyways) about satisfying my more obsessive compulsive tendencies.

Not sure if they'll have anything, but worth a shot if you haven't looked here. http://ocw.mit.edu/index.htm