THobson is right on the money, my bit of advice is try different things , moving invisable H's and also plan and place everything WP's men, objects and the lot, have it all done but the chopper work, then work on the heli , you will fine that if you have a heli in a wp to close to something it seems to think i might land there or something, but again you coulnt get it to land there for anything,,,, they are touchy, you,ll fine heli's the trickyist part of ofp. one more thing,,, try a wp very close to the roping and set it at flyInHeight 25 , i think mabye 30 , height is a big part of what you looking for with rope or ladders,,,,,, its a matter of coaxing the heli sometimes,,,, good luck!!!