After a prototype missile struck, most of Germany was severely destroyed, and of the many victims, none was more severely effected than Michael Smitcht. The missile wiped out most of his family, along with everything he lived for. When he rose from the ashes, his body was mutated with his household pet Terry. He collapsed in despair, but from his mind rose someone else, someone built from hatred and anger, someone who took control, leaving Mike deep in the depths of his own mind. Ever since then, the newly appointed "Split" has been single handedly taking down the UNSC.
Of course this character is inspired by the Batman villain Two-Face.
Of course this character is inspired by the Batman villain Two-Face.