Complex sentence: The remaining ones were captured by Italian forces and commissioned in the "Regia Marina" (Royal Italian Navy) with modified armament; they were also used by the Italians as the model for the Italian-built CRDA 60 t motor torpedo boats.
Split into simpler sentences: The remaining ones were captured by Italian forces and commissioned in the "Regia Marina" (Royal Italian Navy). Apart from putting the captured boats into service with modified armament, they were also used by the Italians as the model for the Italian-built CRDA 60 t motor torpedo boats.