https://www.halowaypoint.com/en-us/community/blog-posts/halo-the-master-chief-collection-we-are-golden
One caveat we wanted to share is that Spartan Ops, our episodic co-op experience from Halo 4, will now release in December. In the meantime, we’re making some technical enhancements to that experience to make sure it’s smoother and even better than before. All ten episodes will be available at the same time, so we’re working to make an event out of it with our Community teams.