If You dont know how to use a CFG heres what you do.
1.You record your demo 
2.you place my CFG in C:\Program Files\Activision\Call of Duty 4 - Modern Warfare\main
3.you rename the cfg to 1.cfg
4.you open your demo with Cod4 player 
5.you type in on your console whilst watching the demo /exec 1.cfg
6. your done :L

Thank you for downloading my cfg dont for get to subscribe my Youtube 
www.youtube.com.user/IsMiseSloan

IsMiseSloan
