Complex sentence: The party then commandeered a Malay junk named "Mustika", taking the Malay crew aboard the submarine the SRD men transferred their equipment to the junk and the "Porpoise" departed.
Split into simpler sentences: The party then commandeered a Malay junk named "Mustika", taking the Malay crew aboard the submarine. The SRD men transferred their equipment to the junk and the "Porpoise" departed.