Salvo, unlike her "twin" "brother" Walkertron, has played in the darkness all her life. Though they presumably share a day of creation and a bodyframe style, they were separated for years for an unknown reason. Sal has faced countless hardships she refuses to detail. She'd prefer not to talk about her past. She'd prefer not to talk at all, really. She'd prefer to kick your skidplate.
Insubordinate, yet extremely effective, Salvo runs afoul of Chason, her squadron commander. She has no use for protocol. Habitually, she will depart unannounced before a fight has even begun, and when Chason's squad bursts into the Decepticon mainframe they were ordered to destroy, they will (frustratingly) find her already there sitting on the ashes.