filmtweaks.cfg goes in Cod4/main folder.
config_mp.cfg goes into %localappdata%/CallOfDuty4MW/players/profiles/J3rRyCFG (make a folder whatever name of profile you would like e.g. J3rRyCFG)

Make necessary changes in config_mp.cfg (set controls, sensitivity, name adjustments first) and then set config_mp.cfg as Read-only. (MOST IMPORTANT otherwise cfg will become curropt)

When in game use ' key to activate filmtweaks cfg and then choose any filmtweak (from F1-F10) , IJKLO, 9,0,Home,End,PGUP,PGDN,-, =,uparrow,leftarrow,rightarrow,leftarrow.... Dont bind anything to these keys. otherwise filmtweaks will collide with your bind.

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