The 501st Legion, also known as the 501st Battalion during the Clone Wars and later known as "Vader's Fist" and the Five Hundred and First, was an elite unit of clone troopers commissioned by Supreme Chancellor Palpatine during the Clone Wars that later became a stormtrooper unit. Made up of units like Torrent Company, the 501st fought in many battles, such as the Battle of Teth and the Battle of Coruscant, becoming one of the most well-known legions. In 19 BBY, the 501st became Darth Vader's personal unit as he led them during Operation: Knightfall, in which the clones helped take down the Jedi, whom they believed to be traitors to the Republic.
I hope this doesn't break any rules about promoting anything else on moddb, but since we are the 501st i thought i would post my Empire boosted mod for EAW here for fun. basically just to crush rebel and pirate scum.
Place Data Folder in the mods folder of Empire at War: Forces of Corruption and place the shortcut on your desktop. use the shortcut to start the game and enjoy over powering your enemies with massive fleets of heavily armed ships.
unfortunately I only modified space, so the 501st isn't a hero unit, but you do get Dalaa and the maw ireggular fleet. buildable only at the Maw!