first when you launch game change your resolution for whatever u want :)
this is normal game cfg as basic, but I have couple changes
bind F4 - reconnect
bind 1 - com_maxfps 125/250
bind 5 - Assault class
bind 6 - Spec ops class 
bind 7 - Demolition class
bind 8 - Sniper class
bind F/Mouse 5 - use
bind H - Flash/Smoke
bind K,L - Elevator binds
bind X - guy will shout ''COME ON''
bind Middle mouse button - grenade
bind G - I have special bind for this jump http://www.youtube.com/watch?v=bsJM1w_UKpo
bind UPARROW - Backlot color http://img99.imageshack.us/img99/1790/cod4mp20120911212843.png
bind DOWNARROW - Crossfire color http://img802.imageshack.us/img802/5387/cod4mp20120911212536.png
bind LEFTARROW - Crash color http://img502.imageshack.us/img502/3361/cod4mp20120911212330.png
bind RIGHTARROW - Strike/City color http://img341.imageshack.us/img341/1672/cod4mp20120911212449.png / http://img42.imageshack.us/img42/60/cod4mp20120911212406.png
SCOREBOARD colors - http://img593.imageshack.us/img593/3112/beznzvufw.jpg
If u'll have any problems, add me on xf: alexmercer5 and I'll help you :) enjoy