Developer Rare announced a new IP at today's Xbox conference. Titled "Sea of Thieves" the game is themed around pirates, and features a shared world which can be inhabited by multiple players. The announcement was described by the developer as "By far the most ambitious game Rare has ever created."
After showing off first ever footage of Halo 5: Guardians' story campaign, Microsoft introduced a brand new multiplayer mode coming to the game.
Warzone is Halo 5: Guardians' new multiplayer mode. It pits 12 versus 12 players with A.I. opponents and maps that are much larger than the series has ever seen before.