Im trying to get my head around Gamestates, Playerstates, Gamemodes and I want an Array of ‘Connected Players’ that everyone can see so I can make a simple scoreboard among other things.
I’ve tried using GameState → Player Array but to no avail, I’ve even tried setting up my own seperate blueprint class which constantly searches for player controllers and adds them into an array but that just caused loads of issues when that replicated.
I feel like there must be a simple-ish solution to this but im not finding it, any ideas? 
It’s not that hard. Just store the information array in your player hud and update it via network functions in your blueprints. You can check the network tutorials on the official UE channel for creating fail-safe functions delivered over network.