Senior command officer aboard a Colonial battlestar, charged with:
- Monitoring the ship's Dradis system
- Managing the ship's offensive / defensive weapons systems
- Overseeing the ship's FTL systems, and plotting jumps
- Supporting the Commander and Executive Officer in the performance of their duties.
The role of the Tactical Officer aboard a Colonial battlestar is closer to that of the US Navy's CIC Watch Officer (CICWO), combining it with elements of the Tactical Watch Officer (TAO), a role also partially fulfilled by the Executive Officer.