I suppose it could, but since we're ad it anyway.
The thing is, there weren't just one 20mm Single, there were five. However, the Mk 10 was by far the most prevalent since it was lighter and less complicated than the others. The main difference at our scale are the mounts. The Mk 10 that we know and love used what was essentially three pieces of flat iron, whereas the earlier Mk 2, 4, 5 and 6 used bell shaped mounts of various sizes and the Mk 2 and 4 had a big brake wheel on the side. The shields are essentially identical, with the exception of the Mk 6 and the Mk 25.
There's also some minor variations on the shell catcher, sights and grips, but those are practically invisible at our scale so I've left them out.
If anyone wants it, I can draw the Mk 2, 4, 5 and 6 as well.
_________________
“Close” only counts with horseshoes, hand grenades, and tactical nuclear weapons.
That which does not kill me has made a grave tactical error
Worklist
Source Materiel is always welcome.