If you have a high end system or average and wondering how you could increase your fps from a constant 91 to 125, use the following codes in your game console or go to C:\Program Files\Activision\Call of Duty4 - Modern Warfare\players\profiles\yourname\config_mp.cfg or config.cfg and open it with a notepad (i suggest wordpad or notepad++).

Keep everything in your config.cfg or config_mp.cfg except for the following which you have to add and copy the values:

These are for the high-end machines:

/com_maxfps 125

/maxpackets 100

/snaps 30

These are for the machines that needs help:

/com_maxfps 125

/cg_fov 80

/maxpackets 100

/snaps 30

/r_drawsun 0

/cg_brass 0

THE FOLLOWING ARE EXPLANATIONS OF THE ABOVE CODES:

/com_maxfps 125

One of the most important commands in cod4 is the FPS command, and Ill tell you why. You probably already know that more fps makes the game feel much smoother. What you might not know is that COD4 is based on the q3 engine and is designed to work at 125 FPS.What this means for you is that your going to have problems interacting with the game under 125 FPS. This can mean any thing from not being able to climb objects, or even bad hit detection during fire fights. The problem is your fps is set to 85 by default, lets fix it. Bring down you console and type "/com_maxfps 125" (with out "").

/r_drawdecals 1

Another helpful command is "r_drawdecals", set it to 1 for on and 0 for off. Its off by default, and don't be surprised if you turn it on then have to turn it off to get into certain servers. It basically cleans up some of the random paper and trash on the ground, and gives you an fps boost. But some servers want you to have bad fps and wont let you in unless its set to 0(note that the other commands will work fine on any server).

/maxpackets 100

Maxpackets next, this command command usually helps people who have good fps but bad hit registration. Default is 30 if your fps is set to 125 you should set maxpackets to this "/maxpackets 100".

/snaps "30"

This command tells your cod4 server how many times to update positions of players, bullets ect per second. Default its 20 setting it to "/snaps 30" should make movement look smother and hits register better.

/r_drawsun 0

Disables the sun and a bunch of effects that is causes saving you a few fps.

/cg_brass 0

Turns off shell ejection. Not having to render them should send a few more fps your way, a good addition to your CoD4 config.

**WARNING: Some of these can get you kicked in certain servers, and none are not to be used if you play in the TWL or any other league.**