Change camera in streamed levels

Hello everyone, I am currently working on a multiplayer game where I have from 2 to 4 players. They fight until one left. I made one level with 20 other streamed levels, I want to have a camera actor in level and in every streamed level. I found out how to load streamed level, but when I load that streamed level, and unload my current level the camera actor does not change to the camera in that streamed level.

I would like to know if there is a way how to change actual camera or should I only change camera location?

I also would like to ask you If I load the streamed level if all Actors in that level will trigger Begin Play event and restart Begin Play events in unloaded levels?

Thanks for any answear