 Vaudreuil took part in the Battle of Toulon on 22 February 1744, serving of "Heureux", captained by his father.He was promoted to Ensign in January 1746, and served on "Tigre" in Duc d'Anville expedition.He was promoted to Lieutenant in 1754, and given command of the frigate "Fidèle", and later of "Aréthuse".