- "Born in Washington DC to family of wealthy politicians. Joined US Army at 18. Family had her stationed in Bulgaria. Served full enlistment. Traveled five years off-grid, fighting in conflict zones from Eastern Europe to Africa."
- — In-game Biography
Sydney was born in 1991 in Washington D.C., United States of America to a family of wealthy politicians. She joined the United States Army at 18. She was stationed in the Yambol Province in Bulgaria where she met with Chimera leader, "Nikolai" during an "interesting bar fight". During her 4 years of service, Sydney enrolled in every available training course and completed all of them.
During the next 5 years, she traveled as a PMC to different conflict zones including Ukraine, Urzikstan and Mozambique. In 2018, she signed a long-term contract with Chimera.
In March 2020, Al-Qatala's new leader Khaled Al-Asad launched an full-scale assault against Verdansk in Kastovia. Operators from Coalition and Allegiance were deployed to Verdansk to stop Al-Qatala as part of the Armistice initiative. During her service with Armistice, Sydney reportedly developed a friendly rivalry with Sergeant Dominique "Domino" Tam from the Warcom unit of the Coalition.
- Sydney blood type is B-.
- Sydney's dominant eye is the right eye.
- Sydney has a vision of 20/20.