Complex sentence: The local village and airport realistically portrayed a typical British wartime base when period maintenance shops, operations center and wartime-style control tower were added to recreate the fictional Steeple Bassington base.
Split into simpler sentences: The local village and airport realistically portrayed a typical British wartime base. Period-style maintenance shops, an operations center and a wartime-style control tower were added to re-create the fictional Steeple Bassington base.