You need a reference to the Players character. Then RPC the server with a pointer to that character, then have the server RPC the owning client from its character.
You → Server → Them
- Your Pawn to Your Server Pawn (RPC Run on Server)
- Your Server Pawn to their Server Pawn (Event to Event, Ref to other Pawn as Target)
- Their Server Pawn to their local Pawn. (RPC Run on Owning Client)
Same flow if using Controller.