Officer: It’s only got one weakness sir, and other than that it’s the king of battle.
Hitler: What’s the weakness?
Officer: it can only go where there’s train tracks, sir.
Hitler: Oh FFS.
It has to be on rails (on a straightaway) to handle the recoil.
And it could hit Paris from within Germany. Not tactical artillery.
It was never intended to be fully portable.
Made obsolete by the V2.