Tactical surveillance officer

Tactical surveillance officer (nicknamed TSO [pronounced tee-so]) was a billet common to Starfleet attack fighter squadrons, at least in the 23rd century. The TSO is the second seat weapons and targeting systems operator in attack fighters that have two or more crew.

Education for the billet usually involved two semesters' postgraduate study at Starfleet Academy in Tactical Flight Training and Support Systems Technology.

In 2274, during a mission to evacuate City Chraino, Ziboji (Aberdeen IV), a Zibojian flight lieutenant and Linda Stevenson, his tactical surveillance officer, rescued a girl named Marlaina Elisabeth, last name unknown. She had no traceable relatives (or they had perished in the disaster), so the lieutenant arranged for temporary housing on the base, and for his TSO and himself to care for her. Years later, she became his legal ward.