I have now finished working on a color modification for Command & Conquer: Yuri's Revenge. It changes the colors of the default units in the game, with black and white being playable colors. It is currently awaiting authorization by ModDB, at which point you will be able to download it. Look for it in the next few days.
I am also still working on the building garrison mod, but I keep getting hard in-game crashes. I suspect this has something to do with non-looping weapons (such as the Chrono Legionnaire's rife). It might also be caused by other weapons such as AA Flak (as used by Flak Troopers) and AA Rockets (as used by the Guardian GI). At some point I will release a beta version, but this will be sometime in the future, as I am still trying to figure out the crashes.