In-game, Sassinak has already taken the portal to Primal Earth. But no reason why you can't still use her in Praetoria-based stories, just assume it took place before she left.
Sassinak
Loyalist - Responsibility (with some Power Arcs in Imp City, and working Resistance Warden arcs in Neutropolis while remaining Loyalist)
Major Arcs - Cleopatra, Interrogator Washington (Cleo died), Interrogator Kang, Alec Parson, Investigator Whitworth, Chance McKnight, Mr. G, Transmuter, IVy, Aaron Walker, Both Preator Tillman AND Penelope Yin (This is where she REALLY starts having doubts about her Loyalties), Anti-Matter, Dark Watcher
Sassinak
Loyalist - Responsibility (with some Power Arcs in Imp City, and working Resistance Warden arcs in Neutropolis while remaining Loyalist)
Major Arcs - Cleopatra, Interrogator Washington (Cleo died), Interrogator Kang, Alec Parson, Investigator Whitworth, Chance McKnight, Mr. G, Transmuter, IVy, Aaron Walker, Both Preator Tillman AND Penelope Yin (This is where she REALLY starts having doubts about her Loyalties), Anti-Matter, Dark Watcher