Glad to see you like it 
For me it little bit hard to explain with my poor English, but any way I can try))
This one grappling hook is not a just weapon, but droid connected to her back and can fly, something like that)
About "throwing it to whom? " it doesn't really matter, it can be an alien or some enemy. Or she can just sent the droid to research and lighting the way, what ever..
