At the latest press event, Microsoft anounced a new TV serie based on the Halo franchise.Halo: Nightfall will be released during the release of Halo: Master Chief Collection and it fills up the void untill the next Halo game.
Locke is played by Mike Colter and the series will be directed by Sergio Mimica- Gezzan ( director of Battlestar Galactica and Heroes), and executive producer will be Ridley Scott.
The presentation of Agent Locke:
