This is a variation of CT's mod - the rocks are black and show up well both in the desert and on grass. To get it to work in CMAK I had to add a three to the beginning of each file. (32130, 32131) (Don't know why but it took me an hour to figure it out.)
You can still see the old grey rocks in snow pretty good so I didn't change that. Apparently the same bmps are enlarged and used for part of the "rough ground" graphic - makes rough ground look a little odd but not much you can do about that I guess.
EDIT: 4/21 I made the rocks look a little more realistic. (I'm bored today)
"Most sorts of diversion in men, children, and other animals, are in imitation of fighting." - Jonathan Swift