HaloMods "Classic" Read-only Archive

I'm trying to replace the grass in bg with a different pic, and i have overwritten the bitmap "Detail Grass", but still there is no change. And I can't even find what I would change for the sandy paths to change.... can anyone help me please?

to change the ground find a texture called bitmaps\levels\tst\bloddgulch\bloodgulch ground download that and that is the ground of course there are testures you ust look for as detail sand to edit the sand as a whole.