Halo 4's Spartan Ops co-op story campaign will see its ninth of 10 episodes, "Key," launch next week, and a trailer released today highlights a climactic battle in the episode.
Capt. Thomas Lasky sends Fireteam Majestic into battle to stop an assassination attempt, and the team ends up discovering the literal key to the future of the Halo Universe in the process.
Episode 9 will be available Feb. 11 on Xbox Live. Check out our interview with Spartan Ops designer David Ellis for more details on how developer 343 Industries put together the second half of the 10-episode season.