Activision is quick
Domain Name: AKTHVISION.COM
Created on: 20-May-09
Ok, c'mon its really easy.
1. Download Notepad++
http://notepad-plus.sourceforge.net/
2. Install it
3. Open file cod4_lnxded in notepad++
4. Press CTRL+F and in search text type: cod4master
5. Yeah, now u see cod4master.akthvision.com (or cod4master.activhsion.com)
6. Change the domain for whatever u want, for example: hhh8sexsex.abcderfujn.com (number of chars must be that same!)
7. Save file
8. Upload it to server
9. Run