[buwaya]

I see uses for these. Urban combat: these could be useful to get a squad up on a building roof without risking a helicopter, a much bigger and fatter target. These could then fight down the building, not up.

Also to insert FO teams on otherwise inaccessible places, ditto snipers, etc.

[GingisK]

...these could be useful to get a squad up on a building roof without risking a helicopter...

Perfect for the military! Why use a $100 grappling hook when a $500,000 flying suit could do the same job?

[Dalberg-Acton]

Your comment made me think of those two fantastic Iko Uwais movies, The Raid: Redemption, and The Raid 2.

See them if you like non-stop action.

[higgmeister]

Also to insert FO teams on otherwise inaccessible places, ditto snipers, etc.

Watch your mouth, there are ladies present.

[justme4now]

Great leaf blower.
Could use one now!😟

[Clarancebeaks]

A suicide bomber wearing one of these things could be hard to defend against.