Mellisa O'Brian

Mellisa O'Brian was a Lance Corporal who served with the UNSC Marine Corps throughout the Human-Covenant War, the last years of which she spent as an Orbital Drop Shock Trooper.
==Biography==
===Childhood and early career===
Mellisa O'Brian was born in 2525 (August 30, 2525) in Bristol, Earth. In 2543 (July 1, 2543), O'Brian enlisted into the UNSC Marine Corps, and was sent off to Reach to train. She is put in Fireteam Falcon of the Fourteenth Squad of the 2nd Platoon of Gamma Company of the 7th Battalion of the 9th Regiment 25th Marine Division. She is joined by Private Lou Cage, Private Jessica Moore, Private Tony Ferguson, Private Mark Graham, and Corporal John Heston. She is promoted to Private First Class a year later (July 1, 2544). She is promoted to Lance Corporal soon after (July 1, 2546).
===Later career===
O'Brian, along with Fireteam Falcon, requested an official transfer to the Orbital Drop Shock Troopers; their request was granted three weeks later, on March 2 (2550). They were made Fireteam Falcon of the Eighth Squad of the Twenty-fourth Platoon of Delta Company of the 74th Battalion of the 2nd Division of the 105th Shock Troops Division. That same day, they are placed on a Corvette, the UNSC Kingston stationed at Gamma Pavonis VII. They are a part of the Battle of Gamma Pavonis VII (March 30, 2550). The next year they are stationed on Earth (November 1, 2551) and help Conor-322 train with his new prosthetic arm.
===Fall of Reach===
In 2552 (July 25, 2552), O'Brian leaves Earth and is sent to defend Reach. O'Brian and her squad are present during the Fall of Reach (August 18, 2552), fighting in New Alexandria. During a fight with Covenant forces (August 22, 2552), Moore, Ferguson, Graham and her are killed by Banshee fire.