Yes, my friends the official insane crazy awesome sport of Halo, “Grifball”, will be one of the main multiplayer modes in Halo 4. That was one of the things 343 said at PAX 2012.
Grifball puts two opposing teams to fight for a ball, and each team attempts to get the ball to the other team’s goal. In this mod you only have two weapons, a hammer and a sword.
Check out the gameplay changes to the mode, and yes you can now pass the ball!!!