Based on the file sizes of previous Call of Duty games, we can estimate that Modern Warfare 3 (2023) will be around 100GB in size. However, it is possible that the game could be larger or smaller than this, depending on a number of factors, such as the size of the campaign, the number of multiplayer maps and modes, and the quality of the graphics. It brings a brand new campaign to the series for the first time in two years, an expansive multiplayer mode and the classic Spec Ops back into the fold. While all of this content is great for The total file size for Modern Warfare 3's campaign mode is expected to be around 50 GB (or more) for both PlayStation 4 and 5. Network: Broadband Internet connection. Storage: 125 GB available space. A mobile phone number must be linked to your Steam Account to play Modern Warfare® II. *Use of CP is not available in all Call of Duty® games, is dependent on functionality and is subject to change. *149 GB of available space required for initial download of Modern Warfare III (78 GB if COD HQ and Warzone are already installed). Content can be uninstalled to access COD HQ + MP only Competitive / 4K Ultra YhQ4CI.