However, even with his exclusive training, Sear deployed with his battalion, the 31st Infantry, on Geonosis as a Sergeant. His battalion was assigned to destroy a string vehicle depots that are supplying the CIS fighting on the front lines. Though the objective was completed, nearly a third of the battalion, including their commander, was KIA. After Geonosis, Sear was reassigned to Commander Neyo's 91st Reconnaissance Corps and was assigned to take Muunilist, where he was given honors for rushing the enemy lines and gained the attention of a Republic Intelligence liaison that over saw the deployment of the Muunilist 10.