User blog comment:Jimeee/Elder Scrolls Online will be subscription based/@comment-3124449-20130822053159/@comment-5130940-20130822161241

Skullvondude, I think what you're referring to is Spartan Ops, which was being updated in Halo 4 by 343 Industries (I think you meant them, not Bungie) almost weekly (I believe there was a one month break in between) until the season ended in January. This did require a subscription to Xbox Live Gold, and I'd say it almost paid 343 indirectly because it's owned by Microsoft.

That said, Gold did offer a lot more things, most notably online multiplayer for virtually every capable game.