Guides
Here’s how to install the game on different platforms.
Call of Duty: Modern Warfare III (MW3) can be played on PC, PlayStation 5 (PS5), PlayStation 4 (PS4), and Xbox consoles. Read on for the step-by-step instructions on how to install Call of Duty MW3 on all of these platforms.
To download the game on PC, launch the Battle.net app and sign in to your account. Next, click on the “Games” tab and select the “All Games” option. Choose “Call of Duty” and press the “Install” button. After pressing the “Continue” button, select “Modern Warfare III” and press the “Start Install” button.

If you wish to play the game on Steam, then head over to the game’s Steam page and purchase it if you don’t have the game already. Next, visit your Steam Library, select Call of Duty MW3, and press the “Install” button.
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As to installing and downloading Call of Duty MW3 on Xbox, head to the “My games & apps” section and choose the “See all” option. Then, choose “Full library” and select “All owned games.” Search and select the game and press the “Install all” button.
Can you play Call of Duty MW3 on PS5?
Yes, you’re able to play the game on PS5. To install it, head to the “Games” section on the home screen, select the “Game Library” option, go under “Your Collection,” select the game, and press the “Download” button.
Call of Duty Modern Warfare 3 PS4 download
To download and install the game on PS4, select the “Library” option from the home screen, head to the “Purchased” folder, look for the game, and press the “Download” button.
Additionally, if you’re installing the game via a game disc, then insert it into your console and follow the simple prompts. According to Activision, if you’re on Xbox, make sure to get the Day One update after the installation is complete.

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