My problem is similar but different to another post about this mission. I have no problem getting past all the goons, getting the bike and accelerating up the jetty to catch Jacob's helicopter. However when I catch onto the bottom of the helicopter I'm instructed to tap A repeatedly to climb into the chopper I have tapped A repeatedly as fast and frequently as I can yet every time he fails to climb up and the chopper eventually flips causing me to fall off and fail. This has happened at least 5 times and is very frustrating I have tried using X to jump up and all the other button to no avail. Please help!! Thanks!!