You want to load just Covert Ops without main game? You may be missing menu background images. Look into SnoopDos.
Second, just wondering how I can activate 'funpark' mode. This is built in to the expansion game, and just needs to be activated.
Not sure if the final NOD expansion mission is possible without being able to force them to fire on target, with a key press, instead of moving closer to fire.
Never tried that, might need to investigate.