https://wccftech.com/call-of-duty-black-ops-4-blackout-rumor/

There’s still quite a bit we don’t know about Call of Duty Black Ops 4 and its Blackout mode, but now we may have learned more thanks to a reliable source.

The Wew Lads, who correctly leaked the content of the Call of Duty WWII fourth DLC pack, have revealed some additional details on the Call of Duty Black Ops 4 Blackout mode. Apparently, the mode will include doors that can be opened and closed, and even zombies in select areas. The mode may also feature 100 players, as this is the number of testing slots. Cracked and Array from the first Black Ops have also been remastered in some Blackout areas.