Sierra-B325, Jason

Jason-B325 is a SPARTAN-III supersoldier and former leader of Fireteam TIMBERWOLF. He is headstrong, reckless, and above all, loves a good fight. He was diagnosed with ADHD during training, and utilizes it in battle and training.
EARLY LIFE AND SELECTION INTO THE SPARTAN PROGRAM
Sierra-B325, born Jason Martin Ashberg, was born on the colony of Algolis on October 15, 2533 to Hudson and Sarah Ashberg, Sarah being a former SPARTAN-II, and Hudson being an ODST. Jason was only five years old when the Covenant attacked the planet. His family was killed in the attack, and Jason was left all alone. He was picked up by the UNSC Fervent Soldier, commanded by Captain Bryan Wakefield. He was also chosen for the SPARTAN-III project helmed by Colonel James Ackerson. He and his fireteam, Fireteam TIMBERWOLF, were pulled out of training just before OPERATION: TORPEDO, and given a new responsibility; to serve with Captain John Darmon onboard the UNSC Dawn's Ambassador. Darmon later defected to the Insurrection. He and TIMBERWOLF took down several Covenant HVTs, such as Gorak'Vuromee, Lados'Farranee, Elgon'Athonee, Ulan'Jukamee, Olak'Haravee, and Greth'Laramee. 
THE FALL OF REACH
In the opening days of the Fall of Reach, TIMBERWOLF had been contacted by Colonel Daniel Hayden, and given an order to capture and interrogate any high ranking officers they found. They were pursued by the Silent Shadow operative Drevan'Vadamee, part of the soon-to-be Arbiter's Sangheili House, Clan Vadamee. Drevan eventually defected to the UNSC after the Fall, and joined TIMBERWOLF.
AFTER THE FALL
Jeremy and TIMBERWOLF participated in several missions, including the First Ark Conflict, The Battle of Earth, and the Requiem Campaign. Jeremy and his teammate Caitlin began a romantic relationship in late 2552, and were reported to ONI by an ODST named Murphy. After this report, along with other events which led to the disbandment of TIMBERWOLF, Jeremy then joined up with an ODST/SPARTAN joint fireteam known as Skyfall. Skyfall participated in the Second Ark Conflict and the Battle for Zeta Halo, as well as OPERATION: WILD HUNT, which is an ongoing program dedicated to special missions undertaken by black ops operatives to track down HVTs. Skyfall consisted of several members: Blake MacPherson, a SPARTAN-IV and leader of the team, Uriah Evans, an ODST tech specialist, Jackson Hayes, an ODST linguistics specialist, Peter Moore, an ODST veteran, Reed Dowe, a SPARTAN-IV medic, Grant Matheson, a SPARTAN-IV marksman, Olivia Namec, an ODST heavy weapons specialist, Jeremy, the team's scout, Trent Owens, a SPARTAN-IV recruit, and Isaiah Graves, an ODST pilot. However, several members have been officially confirmed KIA: Dowe, who was impaled by a Banished Chieftain by the name of Aigor, Owens, who was ambushed by Sangheili rebels and overwhelmed, Moore, who was tortured by Banished operatives, and Evans, who was killed in an explosion. However, they were replaced by new members: Nikolai Petrovich, an ODST medic, Miriam Harlowe, a SPARTAN-IV, Layla Kent, an ODST, and Brittany Waters, a SPARTAN-IV. During the Battle for Zeta Halo, Skyfall took down several Banished HVTs, including: Orak'Vordanai, a Sangheili Blademaster, Kurdak, a Brute Chieftain, Ilfan'Trevamee, a Sangheili Shipmaster, Yapdop, an Unggoy commander, Gival'Hathrumai, another Blademaster, and Reev, a Brute warlord. Skyfall was disbanded following an operation in which Evans, Graves, and Hayes, revealed to be Insurrectionists implanted into the UNSC, held Namec and B325 hostage. Evans and Hayes were killed. Namec and Jeremy became lovers soon after, and kept their relationship a secret from everyone, somehow including ONI. After Skyfall was disbanded, Jeremy formed a new team: Windburn, which retained some members of Skyfall, namely: Petrovich, Waters, and Matheson. Namec was folded into the SPARTAN-IV Program.
PERSONAL LIFE/INFO
Jeremy is a slightly reclusive, whip-smart soldier, who has a strong dislike for following orders. Due to his impulsive nature, Jeremy has been known to strike up what others would call 'forbidden romances' with fellow soldiers, including fellow SPARTAN-III Caitlin-B356, Marine Melissa Cordova, scientist Estelle Marcos, and ODST turned SPARTAN-IV Olivia Namec. Namec was transferred to another team after Skyfall's disbandment, but it is believed that she and B325 may have conceived a child during their time with Skyfall. Jeremy is also known to have a love of knives, having a collection of various blades on both his armor and the walls of his quarters aboard the Dawn's Ambassador.