AH-1 Cobra is done. I must say that it came out beautifully; I added bones to the model and referenced them in the .fxsxml and .ftsxml files so that the machine gun and missiles would fire out of the correct locations (the existing CiV Hind gunship that I used as a rig has different firing points). I deleted the Cobra's rotors from the original Civ IV model since the CiV Helicopter Gunship unit uses effects for them. The only thing it lacks is team color, because I still haven't figured out how to do it using GIMP; if I ever do, I will update the download files with the new unit textures.
The files are located
here.