This wikiHow article will show you how to get CS:GO on Xbox One. This 2012 Xbox arcade game is available on Xbox One through backward compatibility, but cannot be purchased directly from the Xbox One Store. You will have to go to the Xbox.com website to buy the game and then install it on your Xbox One.
Steps

Step 1. Open a browser on your computer and go to the CS:GO page on the Xbox store

Step 2. Click Buy Game
This option is on the left side of the screen.
You will be asked to log into your Microsoft account here if you are not logged in

Step 3. Go to your Xbox One and hit the Xbox button
The Xbox button is the big gray button in the middle of the controller. This opens the Xbox Guide.

Step 4. Select the My Games & Apps icon and press X
This icon has a drawing of a video game controller next to a console and is visible in the left corner of the row, under the Home option.

Step 5. Press X again to choose See all.

Step 6. Highlight the Ready to Install option if it is not already highlighted

Step 7. Scroll down the Ready to Install list and select CS:GO
This brings up the confirmation page.
Step 8. Press X to select Install All.
CS:GO will be downloaded to your Xbox One.