I beat the first 3 chapters on Legendary. After the end of the 3rd chapter I backed out to find a notice that the lobby wasn’t “available at this time”. Neither SO or Wargames were available. About 30 minutes later, after dashboarding and rebooting the game, the lobbies were available again. I went into SO to find I only had credit for beating the first chapter. This isn’t the end of the world but it is mighty frustrating.
bug on 343’s end
it’ll go and you progress will come back don’t worry
it’s effet many people on and off and it just goes after a couple of hours max