Halo 4 update: new maps for Regicide, Grifball gets new rules
Xbox 360: The Official Xbox Magazine
Spartan Sanitation Officer Third Class Epsilon here, with another Halo 4 matchmaking update. This one's all about Regicide (king-killing) and Grifball (goal-scoring with hammers) - both playlists of the same name are the recipients of new maps and rules.