Here is a little history of the Regiment in the French and Indian War.
In 1758, the regiment took part in the amphibious expedition against the fortress of Louisbourg in Canada. It embarked on April 17 and arrived at Halifax on May 9. The expedition was under the command of general Amherst. On June 8, when Amherst's army landed near Louisbourg, the regiment was part of the left brigade under Lawrence. Between June and July, the regiment, held in reserve, took part in the siege of Louisbourg which surrendered on July 27. After the capture of the fortress, the regiment remained there as part of the garrison.From www.kronoskaf.com/syw/index.php?title=28th_Foot
In 1759, the regiment took part to the amphibious expedition against Québec, it belonged to brigadier-general Townsend's brigade. On June 27, the army landed on Isle-d'Orléans and were drawn up on the beach near the village of Saint-Laurent. On July 9, a skirmish occurred near the Montmorency fall. Dank's Rangers were attacked and defeated by a party of Canadians and Ottawa Indians who was in turn repulsed by the grenadiers of the 28th Foot. On July 31, the grenadiers of the regiment took part to the failed attack on the shores of Beauport, suffering heavy losses in the fight. Late in the evening of September 12, 300 men of the regiment formed part of the first 1,700 men who were ordered from the British vessels above Québec into bateaux in preparation for a landing at Anse-au-Foulon. On September 13, the regiment led the way when the army climbed the heights of Québec. It then took part in the battle of the Plains of Abraham near Québec where it was placed on the right flank. General Wolfe charged at its head. On September 18, Québec finally surrendered. At the end of October, when vice-admiral Saunders left with his fleet for Great Britain, the regiment, whose ranks had been replenished to about 650 men by drafts from the 62nd Foot and 69th Foot, remained as garrison in Québec along with 9 other battalions.