That first in bastogne tank was one of a few Jumbo sherman tanks ever built Its actual name was cobra king and it survived the war being one of two Jumbos still existing initially being a gate guard at a few American military bases in Germany having the wrong unit numbering on it then eventually being hunted down and restored Its a real interesting story that you should really research yourself i did it no justice here And the other surviving Jumbo is painted to look like the Cobra king
Does it give any error code? You using mods? If so they may not have installed correctly. Other then that you can try verifying the games cache if you have the steam version. Right click on the game in your library, choose properties, go to local files tab and then click on verify integrity of the game
