In Call of Ducky 4, you actually get to play as Ducky. This is a first in Call of Ducky history. Ducky walks up to a door, and opens it. This concludes Ducky's playable portion of the shame. From that point on, the main character is William "B.J." Blazkowicz. After killing all of the Nazis, William decides to enlist in the Ducky Legion. He only does this because of the 1st Ducky War, and the fact that it will allow him to kill more guys. Of course, he thinks they're fighting Nazis.