Goldboy

Thanks, I think that was what I am missing.

I have only the first 8 missions there, and I completed them all, but I can't get the other missions.

I know that I have to start one of these missions, but they are not unlocked for me in one person mode. I tried to unlock them the casual way, but I can't do it, because the principal isn't there.

Where can I trade Body Parts, like Boomers Claw?