I think there are Amphibious Tanks....just not
TIGERS.

NB
BTW: The German Tiger Tank was the
Second most powerful tank during WWII. There were variations. The Russian T-34 was THE most powerfull tank in the world at the time. The American "Sherman" was a ...lightweight... comparitively...
BUT none of this has anything to do with shooting geese (in a humane way) in the Lakes Region.