Complex sentence: During the fighting Bonnet stayed on deck with his pistol in hand and warned that he would shoot any man who showed cowardice, the pirates morale was good though, they cheered each other on and dared the South Carolinians to board.
Split into simpler sentences: During the fighting, Bonnet stayed on deck with his pistol in hand and warned that he would shoot any man who showed cowardice. The pirates' morale was good though; they cheered each other on and dared the South Carolinians to board.