 As the player continues to progress through the main story line his ship is replaced two more times, first by the slightly sluggish Atlantic Federation bomber 'Zorn', which introduces the player to a ship with significantly greater firepower.Finally the player ends up in a prototype EnTrOx bomber called 'Succubus', which is the fastest and most advanced submarine in Aqua.The Succubus gets confiscated from EnTrOx after their CEO is impeached and the company dissolved to end their monopoly on and control over Aqua's energy, transport, and oxygen resources.