Surge was trained to shoot from a young age "as soon as [she] could hold a pistol straight" by her father and became an expert marksman with surgical precision, earning her her nickname. Her father was no pushover either, once killing three yao guai with only a pistol. However, even that could not prevent his death from heart failure. After he died, Surge wandered the Appalachian trail and met Lev as he fought super mutants, becoming romantically involved with him and joining his gang as they wandered to the Crater.
She disliked Meg's open-arms policy of allowing all sorts of mutants to join the raiders, believing that it would end up getting them killed one day. She also disliked Johnny Weston and his propensity for cheating at cards. However, she was fond of Molly and her drinks.