How to use grappling hook

[NordBlade]

How do you grapple on those bugs and also how can you jump away from the wall when climbing?

[OnlyFight]

aim with slinger then righ click

[Jupiter Pulse]

Press C or V, with your weapon sheethed, then Right mouse click. you'll need to press C[toggle] or V[hold] and press the right mouse button each time you swing from one to the next.

[Ydyp]

are you using mouse and keyboard or controller?

But basic for the beetles are you go into aiming mode when your weapon is sheathed and then press the appropriate button on mouse keyboard it is right mouse click by default. On XBOX controller I think it is Y or B.