The regiment also took part in actions in the Southern theatre and fought under Lieutenant-Colonel Archibald Campbell at the Capture of Savannah in December 1778. At Savannah, Campbell ordered Sir James Baird to take a group of infantry and flank the Americans, while he arrayed his troops just out of view: the Americans were unaware they had been flanked, were routed and abandoned the city. The regiment, now under the command of Lieutenant Colonel John Maitland, went on take part in the Battle of Brier Creek in March 1779; at Brier Creek the 1st Battalion of the regiment attacked the Americans at the front while the 2nd Battalion attacked them from the rear: again the Americans were routed.