Bratton's regiment did not reach the Army of Tennessee until after the Battle of Chickamauga. Brig. Gen. Micah Jenkins replaced Maj. Gen. John Bell Hood after he was wounded at Chickamauga and Bratton once again served as brigade commander. Bratton led a night attack on Federal forces at Wauhatchie on October 28–29, 1863, during which Bratton had the 1st, 2nd, 5th, and 6th South Carolina Regiments and Hampton's legion at his disposal. Opposing him were the 109th and 111th Pennsylvania Regiments along with the 137th and 149th New York Regiments. Although the brigade attack was well-executed, the battle was a significant Confederate defeat at the beginning of the Chattanooga Campaign.