Fallout 4 is a game full of secrets and things to find. I'm sure plenty of you are stilling finding new stuff on your travels in the waste.
Not all of the game's secrets are within the in game world though. As this video from Kotaku shows, there is a lot to be found int he meta-data. I'd heard about the underwater quest covered in here, but the information about the Combat Zone is news to me. It's basically a cage fighting arena, that is in the actually game, but is just a base of raiders now. At some point, it seems that it was going to be an actual fighting arena that you could participate and bet on though.
It's a pretty interesting little peak behind the curtain of lost content.
Take a look: