The Infinity challenge is over, bringing back the ever popular Spartan Ops series and some much awaited matchmaking updates like the Grifball playlist.

Last Monday, Episode 6 and the Community Forge playlist were added. This Monday, the Grifball playlist will be implemented. In case you don't know, Grifball is kind of a like sport in the Halo world. Where two teams are put into an arena, armed with only a gravity hammer and an energy sword. In the middle of the arena lies a ball. The objective is for one team to deliver the ball into the enemy's side of the arena. Halo 4 introduced the ability to pass the ball around to other team member, thus taking grifball to a whole new level.

Also making its debut is episode 7 of the Spartan Ops series, where the Infinity is invaded by Promethean Knights and the Sanghelli terrorist Jul 'Mdama is getting closer to unveiling the secrets of the Librarian. Check out the teaser trailer for the seventh episode of Spartan Ops below.
In addition to all that, two more specializations will be added for everyone, Engineer and Stalker. Read more about the Halo 4 specializations here.