Hello Ghosts,

On Wednesday, 28th at 7am UTC, we will perform a 3h maintenance on PC and Consoles in order to update our servers for the upcoming Title Update 5, and a new game mode called Tier 1 mode.

The patch will be up to 7.42 GB on PC depending on your client, and up to 8.8 GB on consoles depending on the version already installed.
We will publish our patch notes on the forums as soon as the patch is effective tomorrow. In the meantime, we will update this thread regularly to let you know about the maintenance.

This maintenance will only affect the online play. If you are already in a game from the moment when the maintenance starts, your session will be put to offline mode so that you can still be able to play the game solo with your 3 AI teammates.

UPDATE: 28.06 6:45 UTC: The maintenance for PC and consoles will start in 15 min. We will let you know once it begins.
UPDATE: 28.06 7.00 UTC: The maintenance for PC and consoles has started. It should last about 3H. We will let you know once it is over.
UPDATE: 28.06 9.50 UTC: The maintenance for PC and consoles is now over! Thank you for your patience. Please also note that the Patch 5.0 is available for download.

Players in game need to reboot the game to apply the patch. Its size is up to 7.42GB on PC depending on your client and up to 8.8 GB on consoles. You can still keep on playing and wait before applying the patch.
An in-game notification will let you know when the patch is available. Please note that in order to play co-op with friends, you will need to all have the same version of the game.
Please be aware that the patch will automatically download the next time you launch the game, so if you are already in a game session, you will need to reboot it to benefit from the improvements.

Patchnotes for the Title Update can be found here.