Halo 4 Spartan Ops: Episode Four Trailer

The fourth episode of Halo 4's Spartan Ops episodic cooperative mode, Didact's Hand, releases tomorrow. Here's the teaser to get you ready.

Synopsis: This week on Halo 4: Spartan Ops -- An unknown intelligence contacts Doctor Halsey, Thorne tries to understand the history of the Spartan Program, and the Sangheili terrorist known as "The Didact's Hand" appears on Requiem... but what is he searching for? Spartans, prepare for things to get rough on Requiem.