After the Invasion of france, they would launch them off the west coast of france. This would help them get to most of the western and southern countrys borders to stop convoys
Hitler brainwashed his citizens by holding rallys, conferences, and other public events. He carefully explained with propaganda that the Jewish people were bad and that they were the curse from God.
I only know of two and their names were, Jose Antonio Navarro and Jose Francisco Ruiz.
I hope that helped you at least a little, I'm sorry I can't tell you the third
C. huge tunnels were built for sewer lines