I also recall a couple of mods as well. Though no guarantees about them. For Zero Hour, there's C&C All Stars that has the generals universe, the RA, universe and tiberium universe fighting with each other. There was another mod, though I can't remember the name of it, was that it had both major factions from RA2 and TS in one mod with everything fully integrated. Such as GDI/Nod infantry can garrison buildings, Nod tick tanks and arty can deploy, Chrono and War miners could gather tiberium. That sort of thing. Just wish I could remember the name of it....I think it was C&C Reloaded.