So private play over the internet isnt possible? Wanted to use mods against my friends for a laugh. Their is a multiplayer menu Playstation 4 Toolbox, wonder what thats for!
As far as I'm aware no it's not possible. Only LAN. To go 'online' with a game, I would have thought you'd have to be on the latest firmware (5.55 at this point in time).
The tool box is probably just for local play. Against bots / or zombies maybe? I don't know (I haven't play WW2 so I don't know the features).
See if anyone is using the toolbox you speak of on YouTube and see what set up they are using?