Even the Maus makes more sense. Tortoise neither saw any action nor was it even deployed to a war region during the war.
No, six Tortoises (that of course were never actually used) were made the end of the war and only one was ever tested. So it's slightly less silly than the Maus.
In the summer of 1945 ONE Tortoise was shipped to Germany for testing. It was a prototype. Post war. The Maus was also a prototype. And two were finished at the end of the war. That actually makes the Maus a more logical choice. Though both tanks in this game would be bullshit.
No, Maus had two hulls and one turret completely by the end of the war, so there was just one prototype and one hull.
But yeah fuck no keep those things out, there are limits even in this game.