Fan Casting Captain America World War

In 1941 when the Nazis start pushing American bases during World War II, the U.S military starts to get worried and starts trying to create a stronger weapon. All of this is where the super soldier serum comes in, Peggy Carter and Howard Stark start trying to turn a human into the perfect soldier and when a man from Brooklyn named Steve Rogers wants to get into the military but can't because of his disabilities, they start the super soldier procedure on him. Eventually Steve Rogers becomes the perfect Soldier and so he and his best friend Bucky Barnes start serving their country as Captain America and Buck until one day Captain America and Bucky are at a Nazi Base and without thinking Captain America and Buck jump on to a Nazi named Red Skull's jet but when things start looking bleak, Bucky says to Steve that the world needs Captain America and then proceeds to kick Captain America into the icy ocean meanwhile Bucky was never seen again.