Engineer – special Drop Recon armour will help you find the location of supply drops.

Pioneer – gain more XP and level-up quicker using Fast Track armour.

Wetwork – quieter and faster movements for stealth.

You can choose your Specialization once you hit Level 50, and have the option to change it each time you level up. Specializations are the newest addition to your multiplayer career, giving you the chance to enhance and personalise your soldier with a particular set of skills. Taking place on the deck of the UNSC Infinity, War Games introduces a wealth of new game modes and strategies, which all will help further your Spartan IV career. War Games continues the traditional, visceral competitive multiplayer battles Halo is known for. As you enhance and progress the experience, skills and appearance of your Spartan through the many competitive and co-op multiplayer missions, Halo Infinity connects multiplayer to the bigger Halo universe like never before. Halo Infinity is based around the UNSC Infinity, the largest ship in the fleet and the place where you'll build your very own Spartan IV soldier. Halo 4 introduces some bold new multiplayer options to the franchise with Halo Infinity, War Games and Specializations.

Built by the Forerunner race 100,000 years ago, this planet is home to a deadly new enemy – the Prometheans, a robot race that once served the Forerunners and who have their own warrior classes that rival Master Chief and the Spartans.

Master Chief and his AI companion Cortana are adrift on the UNSC Forward Unto Dawn, but the action soon takes them to the artificial planet Requiem. Halo 4's single-player campaign combines the series' traditional first-person shooting style with a new emphasis on mystery, exploration and discovery.

New Specializations to enhance your Spartan IV Soldier.

New Infinity and War Games Multiplayer modes.

The first chapter of the 'Reclaimer Trilogy' introduces an array of impressive new features to enhance and redefine both the single–player and multiplayer experience, and boasts the most stunning graphics and visuals the series has ever seen. Halo 4 marks a bold new beginning for the Halo series. Now a new enemy threatens the universe, an ancient evil that has ties to the Forerunner race, the 'holy' planet of Requiem, and the destiny of Master Chief himself. Five years have passed since the events of Halo 3. Master Chief returns and a new trilogy begins in Halo 4 for Xbox 360.

Halo 4 edition xbox 360