Okay, this is my first skin mod, so don't be too harsh...I realize someone has probably already done this, but so what. This was my first foray in the world of Halo modding....
Anyway, it modifies the Ghost and Banshee into Ice versions. I did it in a few minutes in Photoshop this afternoon, so it looks crappy (to me at least ) Let me know what you think...
Yeah, I just extracted the DDS file with HMT into Photoshop, then overlayed a rendered clouds pattern over it...all I did was the banshee1.dds, cubemap banshee1.dds, and ghost1.dds files, then injected them back into the map. It wasn't very complicated, which is probably why they don't look so great. It took me all of 15 minutes to do...