It looks like that's Stuart's G4M1 that he created for FS2004 to begin with. The inertia behind that project was Toru Morita (Talos2005) who was able to provide Stuart with great reference material and translated data, as well as beating me with a virtual stick until the flight model agreed with his numbers. ( It was a fast nasty aircraft that could whip around impressively with a long long range. Downside....no armor and a Ronson wick.....just light'er up...)
So, it's an FS9 kit that's been modified to work in CFS2, and now a little work (and probably loss of some originality) to get it back in FS9 again.
Here's a link @ Flightsim....get ye the original for FS9:
https://www.flightsim.com/vbfs/fslib.php?searchid=58105582
Or if the link expires, search specific file name: g4m1bty.zip
Plus, if you just search, "Betty" at Flightsim, the file's been modded by both A.F.Scrub, and Erwin Welker to fly in FSX.
If you search the library here, there's a couple of paints for the original FS9 Betty by Morton.....like all of his work, they're superb.