Official rule text
28 76 SHIPS A ship is a unit type consisting of carriers, cruisers, dreadnoughts, destroyers, fighters, and war suns. Each race also has a unique flagship. 76.1 Ships are always placed in space. 76.2 A player can have a number of ships in a system equal to or less than the number of command tokens in that player’s fleet pool. a Fighters do not count toward the fleet pool limit, and instead count against a player’s capacity. 76.3 Ships can have any number of the following attributes: cost, combat, move, and capacity. These attributes are shown on faction sheets and unit upgrade technology cards. RELATED TOPICS: Capacity, Cost, Combat, Fleet Pool, Move, Space Combat, Units 77 SPACE CANNON (UNIT ABILITY) A unit that has the “Space Cannon” ability can use it during two different steps of a player’s tactical action: after the “Move Ships” substep (Space Cannon Offense) and during an invasion (Space Cannon Defense). 77.1 A player is not required to be the active player to use their “Space Cannon” ability of their units. 77.2 SPACE CANNON OFFENSE During a tactical action, after the “Move Ships” substep of the “Movement” step, beginning with the active player and proceeding clockwise, each player may use the “Space Cannon” ability of each of their units in the active system by performing the following steps: