What is Big O. Big O is a form of Omaha poker where instead of four cards,📉 players receive five cards. The format is also played Hi-Lo split with half the pot being awarded to the high📉 hand, and the other half to the low hand - providing there is a low hand that qualifies under the📉 8 or Better rule.

After rebuilding round-based Zombies from the ground-up for Vanguard with the rebirth of Shi No Numa👍  in Season Four, the team has dedicated their efforts to bringing an additional map to players in time for👍 Vanguard's final season.

This is Call of Duty: Vanguard Zombies, developed by Treyarch Studios in a👍 franchise-first crossover featuring new characters and new horrors awaiting your arrival when Vanguard launches on November 5.