Leviathan (Submarine)

"The Leviathan will be your tomb!"

- HYDRA soldier to Captain America The Leviathan was the advanced submarine used by HYDRA during World War II.

Captain America and Thor: Avengers!
In 1944, the Levithan sunk the Allied merchant freighter with the experimental thunder lance torpedo, somewhere in the Mediterranean Sea. Unfortunately for the HYDRA crew, Captain America was aboard that freighter. He swam to the submarine, boarded her, attacked the crew.