Flagship

"Flagship" is the status given to a starship in command of a group of others.
In Star Command flagships work on several levels. Firstly there is the flagship of a Task Force, a group of several ships, such as the ScSS McQueen in 328AE was the flagship of Task Force Green Alpha One. From this there is the flasghip of an Armada, a group of Task Forces. Then there is the flagship of a fleet, such as the ScSS Yakiss which was the flagship of the Eighth Fleet (aka the White Fleet) in 316AE.
The Flagship of the First Fleet is known to be the flagship of Star Command and is usually commanded by the services most senior Flag Officer.