The Master of the Unity was a ruthless killer. Otherwise known as Bater, the Master continued his work by cyro-statising himself, and bringing a weak decoy to play as Hitler during World War 2. After the war ended, in 2077, the Great War began. 40 years after that moment, an unknown man removed the Master from cryo-statis. Eventually, the Lieutenant of Hitler's army was brought back too. The Unity was born, and the new ultimate race was the mutants, no longer the germans.
The Master's reign ended during 2162 when the Vault Dweller annihilated the Master. The Master was, however, kept in a chamber, in which he still had his life, but he could not move.
- The Master knew Presifail Eden, as Eden was the weak decoy.