Do I really have to answer that? You obviously don´t want to understand me.
The USF is designed around medium tanks, yet lacks good medium tanks outside of doctrines. Before mirroring a Tiger, it would be nice to have either Hellcats, some 76mm Sherman variant (M4A1 isn´t in the game for example) or access to the 76mm as a weapons upgrade for the already existing Shermans. You could add a Jumbo as a heavy variant. Vehicles that actually played a role in the war in more than a handful engagements.
I prefer that over seeing Tiger copies in 2/3rds of the games played.
You aren't playing by the rules.
Step 1 - If an Allied fanbois says he wants a Pershing in the game, the axis fanbois must counter either that none were in combat until March or that there were no major pershing on German tank engagements therefore the lack of them is historical.
Step 2 - If Allied fanbois points out the historical issues of German armor the Axis fanbois must respond that this is a game.
Corollary is that anything ever prototyped by the Germans should be modeled as a real combat vehicle that performs to spec. (only 10 Sturms were ever finished, 100 50cm pumas, 40 ostwinds, etc.) While Allied kit is only for use if it landed in Normandy and was built in quantities greater than 10,000.
Ok, that last bit was hyperbole. There were Calliopes in the hundreds.
(As to the COH1 Bergtiger.... Possibly it never existed.