Never saw a Jagdpanzer get more than Vet 1, it either misses every shot, doesn't penetrate, or is sitting in the rear echelon somewhere because it can't be trusted to be anywhere without being babysat.
Also, the Firefly was a British tank, not American.
Yes I know it was a British Gun on an American tank used exclusively by the British. Thank you!
The point I was illustrating is if you have overlap and one is clearly better then the other or close enough in role why not use the superior one? Eluding to how the Firefly in COH1 is better then the Jackson in COH2.
A better Example may have been using the SU76 instead of the SU85 but both those are pretty bad choices so there you have it...
Edit:
Hold on there SIR! I just noticed this part
"doesn't penetrate"
What is it shooting at Mecha Stalin or only IS2s? What will it NOT Penetrate other then these two??