Play longer than ever in a new online Co-op mode, and watch each other's backs with all-new Co-op missions
Engage in Operation Hydra, the expansion from the Windows 8 and Windows Phone 8 game that brings mystery and a chilling addition to the single player Campaign
Wage war against a persistent and overwhelming enemy – encounter the Flood for the first time in Halo: Spartan Assault
Go in strong with an expanded arsenal that brings you more weapons, more armor abilities, and more upgrades – it's the ultimate Spartan Assault experience!
New features only on Xbox One and Xbox 360 - A new online Co-op mode with more missions, enemies, weapons, abilities, upgrades, achievements and more