Intense story on a galactic scale: Play as the Master Chief and Spartan Locke across three new worlds. Your team is your weapon: Play solo or with friends in a 4-player co-op experience. Warzone: New, 24-player massive-scale multiplayer mode. Arena: Pure, skill-based 4-vs-4 competitive combat. New rewards system: Earn Requisition Points to redeem for new gear. Extensive multiplayer content: Receive more than 15 new free maps and earn fresh, new content like weapons and gear, each month after launch.