Folder Redirection is the feature you want to control just the location of My Documents. Find it under the User Policy in a Group Policy Object. You can just set a network path for My Documents (and/or most other profile folders), and then give him the only permissions to the GPO so it only affects him.

http://technet.microsoft.com/en-us/library/cc732275.aspx

In addition from the command prompt run SET.

This displayed the "LOGONSERVER" value which indicates the specific domain controller you are using (there can be more than one).

Then you got to that server's NetBios Share \Servername\SYSVOL\domain.local\scripts.