@Steel, you realize that even if you preserve the LeFH18 and Stuka zu Fuss, they take FOR-FRIGGEN-EVER to rank up and get vet right?
You can use a stuka zu fuss regularly and make tons of kills for an entire game and still not achieve Vet-3 or Vet-4 (Incendiary Barrage) or Vet-5
Vet-4 is the interesting part, and that incendiary barrage costs 100 muni but comes in way too late. By the time you have the option you've either already won the game or lost.
Like I said, I want all artillery to have a more significant impact on the battlefield. Only the Stuka zu fuss is actually significant other than the B4 203mm. And I wasn't even talking about vet as these 2 guns already destroys people without vet.