HaloMods "Classic" Read-only Archive

I have seen mods before where people would have things part of the sky moving across, for example, I saw a Turf mod where the modder had numbers moving across the sky. If anyone knows how to this, please tell me.
Thanks
-Tillerize

I was asking about this a few weeks back. Turns out it's a shader. There are several of them that move. If you want a nice, slow moving one, you can use the clouds from ascension (and replace the bitmap with whatever you want moving) or for a fast moving one, you can use the one from campaign where the Arbiter cuts the cables and the thing falls (same sky was used in the Cable Room map).