No offense or anything, but the Australian intervention looks like you literally just dragged a low-res picture of an Australian flag across the intervention texture and hit save. I do like the idea of the metal one though, you should try making a higher res texture and it would be a great camo.
What program did you use to create the specular maps? I tried using photoshop and changing the contents of the alpha channel, and it was shiny in-game except instead of it being the colour I wanted it was red, and not silver.
Sorry if this is a really dumb question by the way. I'm extremely stupid when it comes to skinning or modding any game files.