Awakening the Nightmare DLC Expansion is not included in the Season Pass. The Halo Wars 2 full game is required to play the expansion. – Play as the Banished in an all-new single player campaign – Battle against an ancient enemy, the Flood – Play online with new multiplayer leaders, units, and maps – Hold your ground in the co-op Terminus Firefight mode – Support for 4K Ultra HD graphics and HDR on Xbox One X and Windows 10