In any case, Security and Tactical only ever got merged on two ships, the TNG and VOY hero ones, after casualities were suffered. Apparently, all other ships have separate folks for those (although they may have funny mergers of other sorts - XO/CSO, or XO/CEO, or perhaps CMO/CEO for all we know).
Shanx clearly did it all, tho. We don't learn whether he got one successor or two, since Freeman doesn't take the ship into battle quite yet...
Timo Saloniemi
Shanx clearly did it all, tho. We don't learn whether he got one successor or two, since Freeman doesn't take the ship into battle quite yet...
Timo Saloniemi