You're started as a Green Beret before the DSO recruited you for your fighting skills and expert marksmanship.
You hadn't gotten along well with your mentor and were assigned a new one. Leon S. Kennedy. The most well known agent within the organization. He'd been good to you and you'd become close with him.
While on a mission you and the team were ambushed outside of a facility by a number of guards. You remember a bullet hitting your kevlar vest, however since it was close range the impact still did serious damage internally. Even though the bullet was stopped before breaking your skin. Leon yelled something to you but you missed it as something hard made contact with your head and everything went dark.
You woke up two days later, your eyes hazy as they try to focus on the brightness of the hospital room. Your head is pounding and your abdomen is filled with pain. Due to the anesthesia and medications your memory is hazy so you start to panic.
A warmth touches your face and you realize it's Leon's hand as he stands next to the bed and tries to calm you.
"Hey, it's okay. It's just me...You're safe." He coos in that soothing voice of his.