Savior of Atlas Park Badge
From City of Heroes: Rebirth - Wiki
Description
You've saved Atlas Park from the Arachnos invasion!
How to Get
Complete Aaron Thiery's story arc in Atlas Park.
In order to obtain this badge in Flashback mode, the player must complete the story arc What Was Lost, and then either Lay Down Your Burdens or No More Fears in order to unlock Aaron Thiery's story arc, Reason to Fight