Bacacorzo is assigned to the Special Service as Captain Pantoja's aide and liaison officer. It is Bacacorzo's responsibility to apprise the Peruvian Army command of everything that happens concerning the SSFGRI. Bacacorzo and Pantoja eventually become close friends. Bacacorzo understands most clearly why Pantoja is the officer chosen to head the Special Service. In Chapter 10, Bacacorzo receives "service" from the "specialist" named Coca.