Gray Fox
02
Gray Fox began his career as a child soldier in 1960s Africa, fighting against Portuguese rule in Mozambique with FRELIMO, guerrilla freedom fighters. As a boy, pure and innocent, he used his frank nature to lure government soldiers off guard, then struck them down with a single knife with the skill of a cold-blooded hunter, earning him the title "Frank Hunter". As a nod to the broken German he spoke, that name evolved into "Frank Jaeger". In 1966, when Big Boss joined the fray in Mozambique's war of independence, the mercenary met Jaeger and took the boy, now just a tool of war, into his care. Though Big Boss placed Jaeger in a welfare facility, the boy was soon abducted by the Philosophers as a test subject for their Perfect Soldier Project.
In 1970, having lost all memory of his past, he participated in the San Hieronymo Peninsula Uprising as the "Perfect Soldier" in Gene's FOX Unit. His codename at the time was Null.
Through his fight against Big Boss, after which the mercenary again saved his life, Null regained some semblance of humanity.
When Big Boss later formed Special Forces Unit FOXHOUND, Jaeger joined under the codename Gray Fox. He later adopted a young girl in Rhodesia (now Zimbabwe) after he had killed her parents, and named her Naomi Hunter. He took her with him when he moved to America along with Big Boss, and continued to care for her until she entered college.
Gray Fox was given a solo infiltration mission during the 1995 Outer Heaven Uprising, but was captured in action. After being rescued by Solid Snake, he disappeared.
In the 1999 Zanzibarland Disturbance, Gray Fox offered Solid Snake support from the shadows via Codec, calling himself "a fan". He led Solid Snake to his position, where he challenged him to combat aboard the revised Metal Gear D. After Solid Snake destroyed Metal Gear D, Gray Fox fought him bare-fisted atop a minefield. A lifetime warrior, Gray Fox had long grown unable to feel alive except through combat, saying that "Any man who's tasted the pleasure, the high of the battlefield, is fated to remain there all his life".