1) I said BOB-era, not BOB aircraft 
That’s not the point. It would be like skinning a 109G-2 as a G-4. HTC may or may not except that. It’s not an 110C-4 it’s a different plane all together.
2) I saw that skin (the image you posted). I used it for confirmation that there was, in fact, a splinter camo on the top (instead of the solid green that AH2 currently has).
Even though the wings are mirrored the camo pattern is off. The colors are dark but that maybe because of the AH2 lighting.
The "splotches" or mottle are over sized and over "bold". That’s why your numbers don’t stand out. Create a separate layer for the mottle. Use the air brush tool but add opacity. After you get the mottle set blur it a bit to diffuse the edges. You may need to add a little more opacity until it look like paint over spray rather then blobs of paint.
The panel lines look as if they are just drawn over top the camo. I don’t see any rivets lines.
Duplicate your panel line layer 3 times.
On one create a negative image so that it is white.
On the other blur it enough so that it looks like dirt.
The burred or dirt should be on the bottom then the white. Offset the white back 1 pixel and down 1 pixel. This will create a highlight. The original panel line will be on top.
If you have rivet lines do the same.
Set the blurred / lines rivets as "burn". The adjust opacity on all 3 layers until you get a subtle look.
To make it look really good you will want all your offsets to go the same way so this may mean multiple layers etc..
I don’t have Ah2 installed any more but I have several skins in game (batz) Check those to see what I mean.
I don’t have time to go through it all but you get the idea.
