If you have Starcraft 2, you can play it, this mod is available on EU server with name "Zed beta".
SC2 editor is might enougth to remake any rts game, so i've tried to make Z mod and succeeded. It has all Z features except pickable granades for infantry and repairing crane. I also added a couple of extra features to make game process more dynamic and to add more tactics. For example, grunts can create little bunkers and enter them. And fortress has airstrike ability like in C&C.