Complex sentence: Unlike the previous single player "Final Fantasy" games which used a turn-based system, battles in "Final Fantasy XII" occur in the open field; however, menus are still used to issue commands to the characters.
Split into simpler sentences: Unlike the previous single-player "Final Fantasy" games which used a turn-based system, battles in "Final Fantasy XII" occur in the open field. However, menus are still used to issue commands to the characters.