CT-3289

"I'm a good shot, but if things ever get rough, step back because the thermal detonators will already be at least a second before detonation."

- ARC-3289, regarding himself ARC-3289, formerly CT-3289, was a  of the 's 553rd Legion, that served under the leadership of General Palladin Flier and Captain CT-4051. 3289 earned the nickname "Xploderz" for his overuse of thermal detonators in most situations.

Early in the, Xploderz was assigned to the 310th Brutal Battalion alongside CT-4051, called "Ubern," and two other clones, although later he was implemented into the 310th platoon, Falcon Platoon. By mid-late 21 BBY, Ubern became a clone captain, and Xploderz was promoted to the rank of lieutenant in the 553rd Legion, which Ubern now led alongside Jedi General Palladin Flier.

Later on, by early 20 BBY, Xploderz was made an ARC Trooper just before the Invasion of Maridun alongside CT-4007. He later participated in the invasion of the world Maridun, and took command of the 553rd in the absence of Ubern at one point, when he went to fight apparent 310th soldiers. Xploderz later helped take the Separatist citadel on Maridun.

On late 20 BBY, Ubern and Xploderz went to and had their  removed and their lives shortened, and later defected against  alongside the genetically modifed clone trooper, Wraith. They joined the Rebellion shortly after, and continued to fight the.