Master Chief returns in Halo 4, part of a new trilogy in the colossal Halo universe.

Set almost five years after the events of Halo 3, Halo 4 takes the series in a new direction and sets the stage for an epic new sci-fi saga, in which the Master Chief returns to confront his destiny and face an ancient evil that threatens the fate of the entire universe.

Halo 4 also introduces a new multiplayer offering, called Halo Infinity Multiplayer, that builds off of the Halo franchise's rich multiplayer history. The hub of the Halo 4 multiplayer experience is the UNSC Infinity – the largest starship in the UNSC fleet that serves as the center of your Spartan career. Here you’ll build your custom Spartan-IV supersoldier, and progress your multiplayer career across all Halo 4 competitive and cooperative game modes.

Features:

• The Reclaimer Saga Begins: Experience the dawn of an epic new Halo adventure, solo or split screen with up to three friends
• Introducing Halo Infinity Multiplayer: The hub of the Halo 4 multiplayer experience is the UNSC Infinity – the largest starship in the UNSC fleet that serves as the centre of your Spartan career. Here you’ll build your custom Spartan-IV supersoldier, and progress your multiplayer career across all Halo 4 competitive and cooperative game modes. Surrounded by the sights, sounds and crew of the biggest vessel in the UNSC fleet, your multiplayer experience will be embedded in the fiction of Halo like never before, where your progress and game choices affect your appearance, arsenal, and role on the battlefield.
• Spartan Ops: The story of the UNSC Infinity intersects with the Halo 4 campaign, then continues on in a brand-new, story-driven experience known as Spartan Ops. A first of its kind and an exciting new addition to the Halo franchise, Spartan Ops is an episodic adventure that blends immersive storytelling, high-quality cinematics, and action-packed gameplay to deliver an unprecedented serialised experience.
  
  Through a weekly series of cinematic episodes on Xbox LIVE, Spartan Ops will tell the continuing story of the UNSC Infinity, following the events of Halo 4. These episodes will centre on the UNSC Infinity leaders and crew, and a new team of Spartans – Majestic Squad. These cinematic episodes will provide the backdrop for the weekly Spartan Ops gameplay missions. Playable in single-player or cooperatively (with up to three friends), explore the corners of Requiem in these objective-based missions, and help uncover the secrets of the mysterious Forerunner world.
  
  A massive-scale adventure that builds off the Halo 4 story, access to Spartan Ops is included with Halo 4 at no additional charge – effectively delivering two campaign experiences in one game.
• War Games: The competitive multiplayer modes of Halo 4, known as War Games, take place on the combat deck of the UNSC Infinity and revive the visceral and immersive experiences that Halo multiplayer is famous for. Halo 4 introduces fresh, immersive new game modes and strategies to help you progress your Spartan-IV career, while also delivering an experience that’s still distinctly and uniquely Halo. More details on all the modes of War Games will be released at a later time.
• Total Combat Freedom and Player Progression: Halo 4 features a vastly expanded suite of new multiplayer modes, weapons, vehicles, armour abilities, a new loadout and player progression system, and a new armour modification system that introduces gameplay-enhancing customisations for the first time in a Halo game. These advancements can be used in both Spartan Ops and certain War Games matchmaking playlists, empowering player choice, vastly expanding their creative options, and make the experience deeper for core fans and more approachable for newcomers.
  
  The Halo 4 player progression system goes beyond simple aesthetic upgrades, encouraging players to invest time and effort to create a Spartan that looks and plays the way they want. Players can earn and activate combat enhancements called Specialisations based on the style of play they engage in, from stealth to all-out assault, and everything in between.