OSTHEER IS DONE WHEN IT'S DONE!
I know that the idea has been rejected for gameplay/balance reasons, but I'd like to point out that the wikipedia link which the OP gave us mentions the fact that the Sturmtiger did operate on the eastern front (warsaw uprising) (and yes, I know wikipedia isn't the greatest of sources).
okay I understood But I see next problem this time in panzer elite. They haven't an universal unit which is base of army. Look: americans have sherman to fight with infantry and tanks, russinas have t-34 also to infantry and panzers, wehrmacht have panzer IV and what have panzerwaffe???They haven't an universal unit to fight with infantry and tanks:( For me it's small problem, they can make for example panzer III or panzer II which a 50 mm cannon.