@TechLord Thank you for such elaborate answer.
After careful consideration we have decided to postpone our multiplayer game dream and do something simpler first with UE to get hang of it more properly. I already explored save object and got gentle understanding into the subject. Still not sure thou how I would do that second part of the problem you have described about sending data to clients properly.
I have been looking into Rama Save System plugin and I am pretty much convinced that’s the solution I have been seeking. So once we get back to multiplayer, this will be probably our choice.