Gauntlets is going to be a series of 30 challenges. It all starts with Voyage of Despair where it is called Unsinkable. The idea of Gauntlets is that you need to survive for 30 rounds. Each round is going to make some kind of gameplay change that is either going to make it easier for you or more than likely much harder.
I think that with all the attention on the fact that Call Of Duty Black Ops 4 is having its own Battle Royale mode, Blackout. Many people have overlooked just how much work has gone into Zombies mode this year. In many ways, I feel that this is making up for a lack of story mode as it seems very story heavy.
What we know is that there is a team of four people (in the trailer each one looks like a certain class) that are traveling through time to stop zombie outbreaks. What is cool is that in e