Before a large operation, Archangel-class transports muster at a classified location in the depths of space, outside of any planetary star system. These points are so secretive that only the navigator and captain know the coordinates. Once they have mustered and coordinated their operations, they jump into system as close to the objective as possible, along with their escorts, who have usually been "softening" up the target zone and ensuring space superiority so that the transports can close in unmolested. Each ship carried an entire regiment of colonial marines. If trying to take a highly populated planet, hundreds of these vessels could be involved.