Update:

Some players on the Xbox One are reporting over 84GB download sizes for Call Of Duty Modern Warfare Season 4. Publisher Activision has since clarified that this is a mistake, and they’re working on fixing the issue.

As previously reported, the Xbox One file size should be around 44.3GB, and not double that.

We’re actively investigating an issue for #ModernWarfare where some players on Xbox are seeing a larger than expected download size for today’s update. Stay tuned for updates

— Activision Support (@ATVIAssist) June 11, 2020

Call of Duty Modern Warfare Season 4, Call of Duty Warzone Season 4, and Call Of Duty Mobile Season 7 are slated to launch later today at 11pm PDT on 10 June 2020, or 2pm GMT+8 on 11 June 2020 in Southeast Asian countries like Malaysia.

According to a Call Of Duty Modern Warfare Twitter fan account, here’s how big the file sizes for the update will be depending on the platform:

• Xbox One: 44.3GB
• PS4: 32.5GB
• PC (Warzone only): 39.6GB
• PC (Modern Warfare and Warzone combined): 45GB

Call of Duty Warzone and Modern Warfare Season 4 file sizes:

• Xbox One: 44.3GB
• PS4: 32.5GB
• PC (Warzone only): 39.6GB
• PC (MW & Warzone owners): 45GB

2 hours to go. #ModernWarfare pic.twitter.com/ydweiBwxis

— Modern Warfare 2 & Warzone News (@WarzoneIntel) June 11, 2020

This was already corroborated by Senior Communications Manager Ashton Williams last night; that players should expect a massive initial download size. However (in the same tweet), she also clarified that it will ultimately only be 4GB in total when the update finishes installing.

The Season 4 download is going to be large. In order to reduce the overall disc space that MW and WZ take up, we’re compressing a bunch of assets. Once installed, the S4 launch will only take up an additional 4GB on consoles for all of the new content.

— Ashton Williams (@ashtonisVULCAN) June 10, 2020

You can check out the trailer below.

[youtube https://www.youtube.com/watch?v=cOOoRmEIXRs&w=560&h=315]