This guild is now an alternate reality guild, within it's history which will be dictated later things will be better explained. For now all that needs to be said is that this The 501st Legion is now a Dark Legion under the command of the Sith Lords. The Dark Side of the force won out and the Jedi were not eradicated right away but managed to escape and formed an alliance with rebels to fight The Empire. Darth Vader hunted the last of the rebels down and killed them, all attempts at forging an resistance is met with death as the dark lords legion cleanses the galaxy.