Put grapplingparams.bin and weapons.bin in dropzone folder in your Just Cause 2 folder.
This mod gives your grapplehook A LOT more range, it makes it drag harder and faster when you are using parachute and it makes it hit stronger. So if the "hit value" was 10 before, i changed it to 10000000, so when you hit enemies, they die immediately, and if you hit vehicles, they will explode!! But if you hit a vehicle you might want to turn on god mode because it will explode on you. And you can even kill the Smoke Monster! I'll upload a video on youtube about it.
Video link for Smoke Monster Kill: http://www.youtube.com/watch?v=mlBOpoxIjsY
Video link for the mod: http://www.youtube.com/watch?v=B2f2LIdXPew
I fixed all the bugs and the weapons.bin file so now everything will work fine! Enjoy!