General Zodiac
Sonic Speed
Leon and Kruser knows each others moves.
Master Chief and Arbiter knows each other moves.
SPARTAN 117:
The Master Chief's childhood was spent in Elysium City, on the planet of Eridanus 2 where he lived with his family. His name was John and he was large for his age at the time, approximately a foot above his school peers, a sign of a "perfect genetic match" for a project dubbed "Spartan II".
At the age of six, John and quite a few other children his age were covertly captured from their houses, and replaced with flash clones. This specific form of clone was employed to ensure that none of the families knew that their children had been kidnapped, and to quickly die so that the parents would never seek their "lost" child. The original children were brought to planet Reach, one of the UNSC's headquarters, to train to become Spartans. On Reach, the abducted children began intensive special training as part of the Spartan program, and were assigned new names. John became known as John-117.
On the first day John meets his team Kelly and Sam. They later become best friends. At the age of eight they are sent out into the wilderness. Their trainer Chief Petty Officer Mendez said the last person had to walk back to the base. After getting involved in a fight with men (without uniform and insignia) assigned by Mendez to protect a Pelican that resulted in their deaths, John wanted to make sure everyone got back so he and the fellow Spartans stole the Pelican (large transport craft). When they returned home Mendez deemed him squad leader.
The children were biologically modified and enhanced, undergoing the following procedures:
* Advanced carbide ceramic material grafted onto bones to increase durability
* Protein complex injections to increase muscle density and lower recovery time
* Body growth hormone pellet injections to boost skeletal and muscle tissue growth
* Occipital capillary reversal to increase blood flow to the eyes, resulting in enhanced vision
* Superconducting fibers added to nerve endings, resulting in 300% increase in reflexes and increases in intelligence, memory, and creativity.
These procedures had substantial risks, and only 33 Spartans of the original 75 survived to functional status. Of the others, 12 suffered 'significant impairment' and were relegated to tactical duties. The rest died. John, during his time with the Spartans, was deemed the "luckiest" and was the first to test the MJOLNIR armor. He also took command of the trainees during free-form tactical exercises and was eventually made squad leader.
John-117's first mission was against rebels in the asteroid belt of the Eridanus System, where his homeworld was located. He was wounded but not incapacitated while leading his squad to capture Colonel Robert Watts, leader of the rebels.
Later on, he was briefed on the Covenant threat; he and his Spartans would fight for the next 30 years against this new threat. They first have to go destroy a covenant frigate. Sam dies because his MJOLNIR armor is no longer sealed, exposing him to the vacuum of space. John loses his best friend. Out of the 3 spartans who went on that mission only 2 survived, John and Kelly.