In each of the game's missions, the player is given a small number of large space ships (always less than ten, and sometimes just one or two), along with accompanying fighters and bombers.
游戏中的每个任务中，玩家被给予少量大型太空船（一般少于十个，有时仅仅是一两个），以及携带的战斗机、轰炸机。