Marcus Fenix

We're not saints. But we are gonna win this f**king war and I'd rather have you on the winning side.

Sergeant Marcus Fenix was a Gear soldier in the COG Armed Forces. A legendary war hero, Marcus served with distinction in the Pendulum Wars which earned him the Embry Star, COG's highest military award, for his actions during the Battle of Aspho Fields. Like the rest of humankind, he saw everything change on Emergence Day. Marcus bravely fought the Locust for ten years, then, during an intense battle, he abandoned his post to rescue his father, Professor Adam Fenix, but could not reach him in time. Marcus was tried for dereliction of duty and sentenced to 40 years in Jacinto Maximum Security Prison. Incarcerated for four years before being released by his longtime friend, Dominic Santiago. Marcus was later promoted to replace Minh Young Kim after his death. Along with the rest of Delta Squad, he successfully detonated the Lightmass Bomb and destroyed much of the Locust Hollow. With his reputation restored, Marcus finishing the war against the Locust, now works with the military to rebuild civilization. He holds romantic feelings for Anya Stroud, and the two began dating on Vectes.

(From Gearspedia)