Grapple
Grapple costs 1 skill point and unlocks the grapple tool. The guide says grapple spots in the world can be used to climb, making this a traversal option for reaching elevated or otherwise difficult areas.
How it works
The tool is used at grapple spots; the guide also identifies prepper stashes as locations where a grapple may be required. It can therefore serve both general climbing and access to some stash areas.
When it helps
Consider it early if climbing access or prepper stashes are a priority.
Read the supporting references
Perk choices affecting traversal, stealth, combat handling, carrying capacity, and squad support. Include skill-point costs and effects only where the supplied guide states them. The evidence does not detail weapon customization or named weapon upgrades. Guidance explains the referenced mechanics; it is not a tested damage ranking. Check the stated edition and source version before applying a patch-specific detail.