Play as forgotten.

the forgotten do not have the buildings that are needed for the economy or for attack etc
forgotten attack units are exact copies of gdi units (properties-wise),
forgotten attack units do not have upgrades
upgrades of forgotten defensive units are only those you see in the fortress
Just play gdi, and imagine different visuals for the units, the experience will be better than actually playing forgotten

well, theoretically, especially if they are copies of GDI, for this special server all they would have to do is copy and paste a few tables over between the factions. All the exists already, you would just have to cut and paste some stuff here and there.

Then perhaps people could play as an infected faction. There are all the buildings and options for both infected gdi and nod in the 1 base already because we shoot them during challenges so the software exists already.that is, if e.a. ever get it right and stop fixing unbroken things to do all they can to try to stop people wanting to spend money in game that pays for thier company profits...shooting yourselves in the foot e.a.

Well, they would have a pretty sick bonus advantage, at least in the first couple of months :p

Better idea forgotten faction