The answer to your first question is that it is possible, I only explained that the system evolved since Soldiers. While Soldiers had only a destroyed hull, MoW:AS has a damaged/inoperable hull which is repairable and a fully destroyed hull.
You can't destroy Tigers with Shermans or Cromwells from large distance. They also can't penetrate a Tiger II head on, so I'm unsure why you think it needs fixing.
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