This is Otacon, a scientist who Viper rescued from a Gekko
Early Years[]
Nothing is known about Hal's mother except that his parents seperated, and his father, Huey Emmerich, eventually re-married a British woman with a child of her own named Emma, who adopted her new father's surname. Hal and Emma became very close, and Emma developed an infatuation. Shortly afterwords, his stepmother seduced him, and they held a brief affair.
When Hal's father learned of this, he committed suicide by drowning himself, dragging in Emma too. Emma expected her brother to save her, but he didn't know it was happening as he was with his stepmother at the time. Because of this, Emma has always claimed to have hated her brother.
After that, Hal ran away from home and didn't see any of his family members until several years later. He dropped out of school but through Internet-based self study, he secured acceptance to the Massachusetts Institute of Technology (MIT), where he earned his PhD at a young age. He holds additional Bachelor's and Master's Degrees from Princeton University, as well.
Scouted by the FBI as a student, he joined their ERF (Engineering Research Facility). After being caught monitoring and hacking their central database, he was forced out of the FBI.
Eventually, Otacon was hired by the defense contractor ArmsTech. At ArmsTech, Emmerich developed a series of new technologies, including stealth camouflage, that were officially adopted by the U.S Army. Following this, he became the lead engineer for the Metal Gear REX project. He jumped at the chance to make an actual mecha-type robot, which appear frequently in the anime he enjoyed. He was led to believe that it was a mobile defense system, but in reality it was a nuclear doomsday weapon. After Viper saved him, he and Viper became close friends. He now helps Viper via Codec by informing him about enemies and their weaknessess