Crab Tank

Overview
Crab Tank is a small terrestrial military vehicle

History
Crab Tank was made by Schneider Company due to popular demands of a vehicle that could survive tough terrain, as well as act as an aquatic vehicle. The result was the Crab Tank, an extremely mobile, heavy artillery, aquatic vehicle that could also be used in psychological warfare against the enemy, due to it's eerie appearance. It proved to be an effective weapon, able to hide on the sea floor and easily sneak up on enemy frigates. A series of Crab Tanks was responsible for the disappearance of the SS Baychimo. After D day, the Crab Tanks gained sentience due to the efforts of a rogue German scientist and they ended up forming a hive.