[KG64_Cnopicilin]

I personally use irfan view, batch convert->batch conversion, output format BMP, check bulk resize->advanced->change color deopth to 256 (8Bpp)->uncheck everything else->OK->Use currect "look-in" directory->Start batch

EDIT: I think gimp cannot make 8 bit images, at least I couldn't.

EDIT2: Skin or repaint? Cockpit etc Repaints in TGA, skins in BMP.