I'd rather have Jumbo then pershing.
1) It makes sense because there was much more jumbos then pershings that actively participated in combat
2) We already had pershing
3) It makes sense, because there WAS jumbo in europe at the time where USF and OKW armies are based on and not a single pershing was on the continent.
1) Only 14 sturmtigers were eve made, 40 ostwinds, 88 jagtigers, 200 pumas, luchs was also incredibly rare.
2) so what? We already had alot of things, no reason why it should't be included .
3) Jagtigers were also not used in battle of the bulge.