I enjoyed that game all throughout before I got bored with the same stuffs, this and that and I also found a modded second C&C Generals Zero Hour known as ZenoForce that had all of the Gundams you need to battle the foes. Check:
Man, Bandai/Banpresto, I think you need to make an agreement with EA games to make a either a Mecha game of MMORPG or RTS format, with it being internationally released for every gamer all throughout the globe who are both MMORPG or RTS lovers that loves not just Gundam, but also all Mechas from all Mecha Anime from the bottom of their hearts.
It is so useless to just make so many awesome mechas and cool buildings to end up as PS2/PSP/PS3, Wii/DS and XBOX 360 games. You need to please expand your own Mecha battle games for the PC too.