Captain Regan Francis is the medical officer who commanded the FEDRA helicopter crew that crashed at the Colorado Mountain Plaza. Most of the Left Behind artifacts in Colorado are her reports and recordings, which Ellie finds while hunting for supplies to save Joel.
The Salon note in Back in a Flash describes the crash in her official voice. The Atrium note in So Close describes how she broke protocol and amputated Ellis's bitten arm, confident she had stopped the infection.
In the Atrium recorder, found in the tent near the helicopter in So Close, she talks to Ellis while he sleeps, says he hit her when she tried to feed him, and admits she left once, got ten miles away, then came back because the unit is family.
The Generator note, also in So Close, confesses that the protocol killing of Caulfield was murder, that she shot him while he begged, and that she is thinking of running.
Ellie finds Francis's body in a small room near the helicopter, still holding the crew photo. The Duct recorder in The Enemy of My Enemy reveals that Ellis beat her to death when she reached for her gun at the sight of infected.
Ellie Williams
Ellie Williams is the 14-year-old girl Joel is hired to smuggle out of Boston, and your companion for most of The Last of Us Part I. She was bitten weeks earlier and never turned, so the Fireflies believe her immunity could lead to a vaccine. You play as her in the winter chapter and in the Left Behind DLC.
Eugene Ellis
Private Eugene Ellis is a soldier from a FEDRA helicopter crew that crashed at the Colorado Mountain Plaza. In Left Behind, Ellie pieces together his story from his captain's notes and his own recordings while searching the mall for a medical kit for Joel.
Larry Caulfield
Chief Warrant Officer Larry Caulfield is a member of the FEDRA helicopter crew that crashed at the Colorado Mountain Plaza. In Left Behind, Ellie learns what happened to him from Captain Regan Francis's notes.
Sean Brendon
Warrant Officer Sean Brendon is the pilot of the FEDRA helicopter that crashed at the Colorado Mountain Plaza. In Left Behind, Ellie finds his body in the wreck while searching for a medical kit, and he is named in the captain's notes.