Hey guys, I'm the number 10. Go ahead and multiply me. See what happens.
Commander Ark was an old Pirate Merc, who's planet had been ravaged in the Sith-Jedi War. Wanting revenge, he set out and joined the Mandalorian Empire, quickly climbing the ranks. When the Mandalorians and Jedi were brought into conflict, he stayed with the Mandalorians and fought in the first Jedi-Mandalorian War.
When the Cold War started, Ark lost rank and intrest to those more politicly capable. He began to despise politics, and tried making money as a merc for hire in the mean while.
When the Sith returned and the eventual War between the Mandalorians and Jedi resumed, Ark fought and fought agaisnt the enemy forces. He was injured at the battle of Kamino, and was taken in a convoy to nearby medical facilities. A stealth ship boarded the Medical ship he was on, and abducted him.
When he woke up, a Dark Figure was starting at him. The Figure offered him rank, power and most importantly: A fight. Ark agreed to help the figure, who turned out to be Lord Kairn, and became one of his best Commandos.
Commander Ark has now formed a group of former War Veterans and Mercs, and he protects the Beskar Marev. He has the old armour of the 501st, modified to fit in additional gadgets.