So I made a weapon that is a ball and chain. The thing is at the moment, the mesh stays the same when you swing it. Its still like a normal sword. How can I make it move with physics as you swing the Ball and Chain? So the ball should move independently with the chain depending on where you swing it according to gravity, air resistance, etc. How can I do that?
Multiple ways. There are a couple of Tuts out there so I don´t go int Detail. If you got trouble to find some look for similar things like Ponytails works more or less the same.
Constraints. Usually used for Level related Stuff. Physics Constraint Component User Guide | Unreal Engine Documentation
Simulate at specific Bone and Bellow. Set All Bodies Below Simulate Physics | Unreal Engine Documentation
Physics Asset Physics Asset Editor | Unreal Engine Documentation
Good Luck, Play around and have Fun.