It seems that the example of Treyarch Sledgehammer shows that you need a patch a day to play the next edition of Call Of Duty Black Ops 4 Key.

Maybe you remember Call of Duty last year: World War II needed a patch the day before to play it.

This method was very effective in preventing early leaks because previous versions of the game, before the official release date, could access individual players and zombies. With WW2 and now Black Ops 4, those who received their copy in advance await the day an update will be available.

Although this year's game does not have a single-player campaign, some games, such as specialized intro missions and zombies, must be playable offline. Basically, this means that the physical version can not be played for players without an Internet connection.

Obviously, this should not be a problem for players with a digital copy, as this version will only be released after the regional release.