Admiral Atom

CT-3491, Admiral Atom, started out as a average clone, who was personally trained by Jango Fett and later assigned to an elite arc unit led by Arc Commander Cards and found himself being moved to multiple battalions.

Early Clone Wars
The first half of the Clone wars began with many battles across the galaxy, and droid army wasn't going to let some clones take them down without a fight.

First Battle of Geonosis
When the Clone Wars first began, Atom was shipped to Geonosis along with every other clone ready for combat. They got there just in time to rescue the jedi. Right away Cards' unit was assigned on an important on a mission, to destroy the Geonosian spires in the distance that were getting sniper shots on the clones men. They had a rough time getting past all the droids with no air support, but they pushed through and destroyed the spires, just as they saw Dooku's shuttle escaping the planet. It was a victory, but with heavy losses.

Wreckage at Ord Mantel
Shortly after the battle of Geonosis the Republic got word that an acclamator assault ship that was carrying important cargo had fell under attack and crashed on the junk world of Ord Mantel. The unit's assignment was to get the cargo back and rescue any survivors from the crash site. When they got to the surface they found the ship, but the cargo was gone and there were no men alive, they noticed blaster shots on some of the clone's armor. Commander Cards contacted the cruiser above the planet to see if they could track the cargo, they successfully did but reported that it was moving at a high speed in the direction of a spaceport. By the time the unit got there they saw a ship take off, then recieved word that it was Cad Banes ship. The cruiser was able to lure his ship into the hanger with a tractor beam but didn't have enough men to stop Bane, he then made his way to the bridge to try and shut down the tractor beam, just as the unit was able to find him although they felt guilty knowing that they let him kill so many clones.

Droid Counter Attack on Christophisis
After Generals Skywalker and Kenobi were shipped off of Christophsis the Republic sent Cards' unit alone with several other units to finish off the droid army on the planet. They soon realized the Separatists had built a massive droid factory, with AATS and Octuptarras ready to be deployed knowing that they were outnumbered and out gunned the unit fell back to the cruiser to inform the Republic.