Who willingly would sign up for such an assignment ... knowing the ‘end’ game?
People smart enough to shoot a gun but too stupid to realize that they’re expendable once the deed is done.
who would sign up?
Someone who has been persuaded that the “end game” doesn’t involve an “unmarked grave out past Terlingua”.
Or a group of reasonably smart amateurs who don’t realize they’re being “run” by a professional.
Or maybe the plane has nothing to do with it ...