Build and lead powerful armies of vehicles and troops in epic battles. Experience an all-new story told across action-packed campaign missions. Play with or against friends and the Xbox Live community in a variety of multiplayer modes supporting up to 6 players. Instant combat instant command. Blitz mode is an all-new way to play. Combining tactical combat with card-based strategy your deck is your army in Blitz as you build collections of powerful Halo vehicles and troops and command those units in fast-action matches.