I need help with Giving and taking damage

Im almost done with a project that i am working on but i have become stuck with one thing. this is damage systems. im having trouble finding a tutorial about it? so pretty much i have to of the same actor spawning on two clients and i want them to be able to damage each other. if this is not possible to use the same character twice for damage then should i duplicate the character and move on from there?

Everybody is so terrible on here. They won’t even answer us.

Applying damage to actors on networked games works only when the Server applies the damage, you can’t use client to apply damage, it’s server side only.