Log into FTP for your server, and then save everything inside the /ShooterGame/Saved/ folder to a local backup on your PC.
To edit/upload/save/delete files via FTP, use the following method:
- Stop your server from the panel
- Log in to FTP using WinSCP (a free FTP software) using the connection details found in the "FTP Details" section of the game server control panel
- Navigate to the directory you wish to upload or edit a file
- After uploading your files in the proper directories, start your server from the panel
You may found a download link for WinSCP here: http://winscp.net/eng/download.php