From Halopedia, the Halo wiki
Jonah-B283 was a SPARTAN-III supersoldier of Beta Company. He was part of the UNSC Naval Intelligence Beta-5 Division and a member of an elite Headhunter team alongside fellow SPARTAN-III Roland-B210. He, along with Roland, led a semi-successful stealth attack on an unknown remote moon on which the Covenant were digging for Forerunner artifacts.
Jonah was born on the human colony Eirene. Sometime prior to 2537 the colony was attacked by the Covenant Empire. Although Jonah escaped, his parents, brothers and sisters were all killed. Several years later he was one of the hundreds of war orphans recruited into the SPARTAN-III Program.
Induction into the Headhunters
Jonah was inducted into a two-man fire team as part of the special operations program known as the "Headhunters" when he met and exceeded all requirements. He was paired with Roland because their match rating was 97.36%. Only one other team scored higher.
Infiltration on unidentified moon
Jonah and Roland were assigned to destroy six of the ten identified Covenant bases located on an remote, unidentified moon, while another Headhunter team would destroy the remaining bases. After locating a base, they gathered intelligence about the enemy forces and then devised a plan to destroy the base camp.
Inside the base, everything went according to the Spartans' plan. As Roland placed demolition charges in the base's reactors, Jonah eliminated several targets in the camp barracks by using energy disruptors and flashbang grenades to confuse his enemies. Jonah began to taunt his enemies with a Sangheili's severed head and laughed as he watched their anger grow. He flung the severed head at the remaining Covenant and then killed them all.
As Roland confirmed that the charges were in place, he was run through with a strange, red-bladed energy sword from behind. Before Roland died, he managed to say the word "Clear". After briefly fighting the energy sword-wielding Sangheili, which was a member from the Covenant Operations group known as the Silent Shadow, Jonah discovered that the alien was not traveling alone, and had brought five other Silent Shadow warrior Sangheili along with him.
Jonah realized that he had been caught in a trap and that the Covenant knew about the Headhunters. Jonah then realized why his fallen friend had said "Clear". Roland had told him with his dying act that the charges were set. He detonated the charges shortly after, taking the six Sangheili warriors with him, and incinerating Roland's corpse.
The Sangheili in charge grabbed Jonah, dislocating his shoulder, using his energy sword to slowly slice a gash into Jonah's faceplate, destroying his eye in the process. Another Sangheili grabbed Jonah by the neck, but not before Jonah declared that his life for the six Sangheili' was a fair trade. He then released his finger from the detonator, activating the explosives. Jonah, the Sangheili, and the Covenant camp were all vaporized.
Jonah, as compared to his comrade Roland, was arrogant, cocky, and carefree. He fed off the heat of battle and taunted his enemies before he killed them, often mutilating their corpses in some fashion. Roland said that the only reason he received the active camo was that Jonah would use it to give a Grunt a wedgie. Jonah often regarded his missions as a sort of game, with little regard for the possibility of his death. Roland called his teammate a sociopath because of the joy he took in killing Covenant, a trait the Spartan did not dispute.
List of appearances