Two other points:
1) If it's a field-painted camo job, they wouldn't have painted the stencils back on top (so no wing walk area, no text).
2) if it did have text on the wing, you've got it mirrored on the screenshots. You would have to flip/mirror it in the bitmap so that in-game it showed up properly. That is, of course, ignoring poitn #1 (above)