Navigate to the Download menu. Click on the [Download] button for the Game Client file to begin downloading the client.
When the download pop-up appears, click on [Run] or [Save] to begin downloading.
Once the download is complete, click on [Run]. (If you have accidentally closed this window, you can double-click on the Combat Arms installer icon.)
The Nexon EULA window will pop up. Click on [Agree] to agree to the EULA.
Confirm the folder destination where Combat Arms will be installed. Click on [Install] to start the installation.
Once the installation is complete, click [OK] to close the window.