Raging Raven is fought in Act 2. She is an aerial opponent, flying around a multi-level structure and launching missiles. Her weak points are her head and the jetpack on her back. Use a high-powered weapon like a railgun, rocket launcher, or even a sniper rifle to knock her out of the sky. When she's grounded, unleash damage. Be wary of her proximity mines. For a non-lethal approach, tranquilize her while she's grounded. In her Beast form, she becomes more aggressive with melee attacks. Keep your distance and continue to target her weak points. Her doll is obtained via non-lethal means.
