475th Attack Legion

The 475th Attack Legion, also known as the "457th" or the "Hellraisers", Were active in the Clone Wars from 21 BBY up until Order 66. The battalion was distinguished by their Brown and Black colored armor often depicting flames and other graffiti like insignia. It's commanding officer was CC-9870, better known as "Stoker". They also served under Jedi General "Elpam Creede".

Specialization
The 475th as their nickname suggests, weren't a discreet Legion, their speciality came from the abundance of Flame troopers in their ranks - They inherited most of the 21st Nova Corps Flame Trooper division including that of CC-1993 also known as "Jet" after it became the Galactic Marines and CC-1138 took up the role of Clone Commander. They are specialized in incendiary combat and use the BT X-42 flamethrower.

History
The 475th Attack Legion was created to manage an influx of Clones from Kamino in preparation for the Second Battle of Geonosis. A fresh Clone Commander (CC-1887) Also known as "Rizer" lead the 475th against the Geonosians and was killed in combat while saving his Jedi General "Elpam Creede" who was caught up in a fight and could not escape the battlefield (though eventually Elpam Creede did survive).

After the battle of Geonosis a new Clone Commander CC-9870 also known as "Stoker" took control of the 475th. Stoker had undertaken the experimental training program that "Rex" and "Neyo" did and came out the end of it a clone deeply infactuated by the free-flowing motion and destructive capabilities of Fire. When the 21st Nova Corps was becoming annexed into the Galactic Marines the redundance of the Flame troopers and their Commander "Jet" was imminent, but the 475th annexed the Flame troopers and became the Grand Army of the Republics number one incendiary weapons specialists. Commander Jet, Stoker and Elpam Creede were only scarcely deployed after that due to the ineffectiveness of flamethrowers against Battle Droids.

During Order 66, Stoker and Elpam were on Felucia - The 475th was doing Peacekeeping on the Outer rim planet and covered sectors that were out of the 327th Star Corps reach. Stoker and Jet received the order while in the process of clearing forests to allow their A6 Juggernaut tanks to pass through a jungle pass easily. Upon receiving the order Stoker turned to Elpam and without hesitation burned the Jedi General to death. Shortly after order 66 the Legion was dissolved into other Legions and Battalions as allocated Flame troopers and Magma troopers under the Galactic Empire.