In the Fallen Angel DLC, she can be found tied up with Bob and Devon at the Ingleton Motel. They are about to be executed by a soldier, but Angel can stop the execution and save the group. When saved, the group will provide 20,000 PP.
In The Last Agent DLC, she can be found on top of a military vehicle near Joey's House. If she's saved, 10,000 PP will be rewarded and she'll escape to a safe zone. Saving her is required for the Sworn to Protect achievement.
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