Earthly Command Ships are small, AI-equipped ships that serve to, fairly predictably, command everything during a planetary assault.
Most speices who use Command Ships follow the above description.
Earth Human Command Ships carry crews of 30, and are 75m long and 40m wide, to 100m long and 60m wide. They have two decks; the main one on top, and the bridge, a fairly small protrusion on the front-belly of the ship.
They are armed with only two rail turrets, as they are usually guarded by other, much larger ships, and are powered by a half-gigawatt reactor; are propelled by ion drives; and have a GIGA-variant mainframe; capable of supporting an AI.
Command Ships are lightly armored with 1m of Composite plating.