I think Brummbär is too powerful.
I did some tests, and show this:
In veteran 2, the Brummbä wins:
Sherman, Cromwell, Comet, T-34 / 76mm, T-34/85, 'Easy 8' Sherman, M10 'Wolverine', Sherman Bulldozer.
Obviously the Tank Destroyer (like the Jackson) also wins, but they shoot a distance, for that do not mention them. However, Jackson needs 9 shots to destroy him. While to destroy King Tiger needs 10.
The Brummbär is:
Good vs infantry (It's perfect).
It has almost the same armor as a King tiger (ok, I can live with that)
He won all the tanks of the allies (Here's a problem)