This is how you install it.
1.Download it
2.Extract it
3.Go to your COD4 Folder
4.Go to main
5.Rename iw_03.iwd to iw_03.rar and open it with WinRar
6.Copy the files from the download to it. Then exit
7.Rename it back to iw_03.iwd
8.Enjoy
@makzy Wtf?!
Just to to your COD4 folder --> Mods --> ModWarfare. Make folder "images" and put there ".iwi" files. Delete "z_modwarfare.iwd". Start "makeMod.bat" and its done. If you want to use the sky in other mod...just copy the "z_modwarfare.iwd" (the new one) to the mod folder and rename it to the mod name.