You guys obviously aren't actually listening to what he is saying. Just because the game is supposed to be realistic doesn't mean this will break the realism. Grappling hooks as in you need to set it up and climb. No, not like just cause, but like rainbow six siege. Rainbow six siege is literally based around terrorists and cops. There is literally nothing unrealistic about people using grappling hooks to rappel down a building or climb up a building. Also its not like the people are going to land the grappling hook everytime, unless they are good at it. Another thing it adds is creativity. They could just be expensive also. If you have like a wilderness shop that sells all type of stuff, then you could have it be sold there for a lot of money. Enough money that the average citizen that is just chilling out couldn't just walk in and be like "Ooh, I wanna buy this."