 After leaving "Caio Duilio", he became chief of staff of the First Fleet embarked on the heavy cruiser "Trieste", and from May 1930 to May 1931 he served as commanding officer of the heavy cruiser "Trento".Campioni achieved flag rank in 1932, being promoted to "contrammiraglio" ("rear admiral," a rank equivalent to the United States Navy′s rear admiral lower half) and was promoted again to "ammiraglio di divisione" ("vice admiral," a rank equivalent to rear admiral) in 1934.He served as Chief Cabinet Secretary of the Navy before commanding the 5th Naval Division during the Second Italo-Abyssinian War of 1935-1936.