- Captain vs. Ambassador: In any Embassy, the chief officer is the Ambassador. For the purposes of this Embassy, we know there has to be that one person at the top. But what about a captain/commanding officer? Does the Ambassador play that role? I'm unsure. I suppose it comes down to whether or not the CO wants to play that role. If he or she does, then she would take that title and act as the CO of the SIM. If she doesn't, then you'd have the CO be the person who commands the StarFleet personnel, and then an ambassador who was of the rank of Lt. or above OOC. The CO would answer to StarFleet, while the Ambassador would answer to Federation Diplomatic Corp. 1 ambassador needed, 1 CO and/or FO needed.