[JG54Spookie]

I have an issue with the skinmod whereby I can give an aircraft a multi skin, but not a country specific one (specifically with the B17 and Mossie, mabey with more too).

Only certain planes have country specific schemes. Most of the ones that do are either British or American, and only have country specific defaults for their parent countries. There are a few exceptions to this, but the B-17 and Mosquito only have multi and parent country defaults (as far as I know).