The problem with German OOB is that no matter how many slots you have, you will always fill them
As for above thaaat Pz III n was a case of lack of coffee and shortsightness, sorry...
SiG II can be substituted by Bison no probs. A bit harder with StuIG 33 as it's closest cousin, Brummbar, is not available in 1942. Guess I will just mobhack him
The reasoning behind cutting down Fw 189 - well, it seems SPWW2 still suffers from that old bug when you have more than 20 units of one class available, only the first 20 will pop up in the purchase window. Air strikes are most often victim of that and multiple copies of earth-shattering designs such as 189, Hs-123 or the PaK Ju88 variants don't help