Gallifreyan Cyber Fleet

In an alternate timeline where Rassilon gave the Cybermen the means to conquer all of time and space, the Gallifreyan Cyber Fleet was an army of Cybermen and Cyber-ships that invaded the Capitol on Gallifrey.

Structure
The Gallifreyan Cyber Fleet was comprised of hundreds of Cyber-ships (COMIC: Supremacy of the Cybermen) that resembled the somewhat cylindrical Cyber-ships used by the spacefaring Cybus Cybermen, (TV: The Pandorica Opens) and particularly the Cybermen of the Cyber Legions. (TV: A Good Man Goes to War) The Cybermen that served as the fleet's soldiers, who numbered in the thousands, (COMIC: Supremacy of the Cybermen) were identical to the evolved Cybermen of the Cyber Legions that fought in the Cyber-Wars (PROSE: Ghost in the Machine) and their aftermath. (TV: Nightmare in Silver)

From Rassilon's perspective, he served as the overall commander of the Gallifreyan Cyber Fleet after being converted into the Cyber-President, declaring to the Twelfth Doctor that "the Cybermen bend their knee to [him]". However, after the Cybermen betrayed Rassilon and wired him into a Loom inside the chamber of the Eye of Harmony, the Gallifreyan Cyber Fleet's true leader revealed itself: a highly-advanced Cyber-Controller, who usurped Rassilon's plan to accelerate the end of the universe and shape the next universe in his image, instead intending to create the "Age of the Cyberiad". (COMIC: Supremacy of the Cybermen)