Complex sentence: The idea was ultimately scrapped because the developers ran out of time to debug it, despite admitting that "it did work rather well"; the mode later served as the inspiration behind the "Counter-Operative" multiplayer mode in "Perfect Dark".
Split into simpler sentences: The idea was ultimately scrapped because the developers ran out of time to debug it, despite admitting that "it did work rather well". However, it would later serve as the inspiration behind the "Counter Operative" multiplayer mode in "Perfect Dark".