Although we've already seen the live-action launch trailer for Halo 4, Microsoft has released a new trailer for it's separate Spartan Ops DLC campaign.
Each week, five new Spartan Ops missions will be delivered to Halo 4 players for free for the first season. The episodic adventure follows the Majestic Squad aboard the UNSC Infinity. The missions will continue for a total of 10 weeks during season one, and are expected to add up to 12 hours of gameplay in addition to what the Halo 4 campaign already offers.
Halo 4 is set to release on November 6, 2012, but we don't yet know when they plan to release the first batch of Spartan Ops missions. Halo 4 is said to be Microsoft's most expensive game to date.
