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The Chief Science Officer or C.S.O. was a position aboard the USG Ishimura. The C.S.O. had the responsibility of overseeing the science wings and had authority on the Medical Deck. He would enforce protocols and in times of emergency could enact quarantine procedures. The C.S.O. was trained to both act as a scientist and doctor and any protocol or quarantine enacted by the Officer could only be vetoed or overruled by the ship's Captain. The last known C.S.O. of the Ishimura was Terrence Kyne who attempted to stop the Necromorph infection from occurring, but was stopped by Captain Mathius. He later came to formulate and help execute the plan to have Isaac Clarke return Marker 3A to Aegis VII.


  • The position is likely the counterpart to the Senior Medical Officer (S.M.O.) which was held by Nicole Brennan.