Of course, Nazi soldiers who accepted Jesus Christ as LORD and Savior God went to Heaven.
You are not saved by your own works, but by the grace of God. Every Nazi soldiers, regardless of how many Jews they personally put in the gas chamber during the Holocaust, went to eternal life in Heaven, if they accepted Jesus Christ as their personal LORD and Savior.
You are “born again” because of your faith in Jesus Christ. You are saved through faith, and not because of your own good works.