Call of Duty Vanguard file size has already been revealed for Xbox. Don’t worry, you don’t have to buy a new drive.
Microsoft store listing for Call of Duty Vanguard includes details that aren’t available on Battle.Net. The point of interest is the approximate Call of Duty Vanguard file size, which is 75GB. That’s just for single-player and standard Multi-player that comes with it, we assume. Since Warzone is pretty much on its own these days.
Though the file size isn’t small, it’s reasonable compared to Black Ops Cold War. All we can do now is just wait and see what the final file size will be. Call of Duty Vanguard releases on November 5th, pre-order now for early access to Beta.