What IF, we swap vet2/vet3 on the Stug.
Give the higher Rof boost and mobility sooner and leave the armor (which is mostly irrelevant for the Stug) and smaller RoF as vet 3.
I think this at minimum is a very good idea, going further I suggested we change the armor buff to health
Now instead of going from 140 armor to 182 at vet 2, it goes from 560 health to 720 at vet 3
The Stug had it's reload time nerfed relatively recently, so I think that part of the change is more clearly good than the part I added, which seems more debatable