John-117

John-117, better known by his rank Master Chief Petty Officer, was an augmented human during the Human-Covenant War. John was taken as a child and enrolled in the SPARTAN-II program, originally meant for quelling the problem that had arisen in the form of human rebels. When the Covenant, a race of zealot-like religious aliens invaded, the SPARTANs were redeployed to counter this new threat. Many perished, but the Chief survived long enough to discover the Halo Ring, a supersructure capable of destroying all life in the galaxy. With the help of his friend, Sergeant Avery Johnson and his AI companion Cortana, Master Chief destroyed the Halo ring, along the way he encountered a zombie alien species, the Flood. He later helped defend Earth when the Covenant launched a daring attack on the heart of humanity. He discovered the key to destroying the Covenant weapons, the Scarabs, and invaded the Covenant flagship High Charity. After returning to Earth, he teamed up with the Covenant Seperatists and destroyed the remnants of both the Covenant and the Flood, and permenatly ended the threat of the Halo Rings. Unfortunatly, the Chief was trapped in half of the Pillar of Autumn floating in the deep dark of space, nothing but himself and his rapidly corrupting AI Companion. John returned to his cryo tube, never to be seen again.