How do I download Call of Duty: Modern Warfare: III? (PC)

How do I download  Call of Duty: Modern Warfare III?

First, you’ll need to download the Steam client from the Steam Storefront.

Start the download by clicking on the "Install Steam" button.

You’ll be asked to select a destination folder for your download. Once you’ve selected, click “Save”.

Next, launch the installer, click “Next” and follow the instructions to complete your installation.

Once the installation is finished, open the Steam Games Launcher.

Login with your Steam account, or create one if you haven’t already.

You should now see the Steam Store! 

In the "Search" bar on the upper Right, search for “Call of Duty: Modern Warfare III”.

Once the search results appear, select Call of Duty: Modern Warfare II (it'll likely be the first item in the search results).

You’ll now see the game page for Call of Duty: Modern Warfare III. Click on the "Add to Cart" button under "Call of Duty: Modern Warfare III" and proceed to checkout.. 

Once the the purchase and download is complete, you’ll find the game in your Library, located on the top left.

You should now see your game in your library. Once the download is complete, simply launch the game to play!