*CG FOV :: Field of view, where the value is the angle of the circular arc that is displayed
on your screen. High values will make the game appear "fisheyed".
*MAX FPS :: This command limits your maximum FPS. You may ask why you would want to do this,
and the answer is that it will help the server from having lag confusion when your frame rate
has a sudden rise or fall. Run a timedemo, collect your average FPS and use that as the limit
for when you play on-line.
*SNAPS :: This is possibly the most important setting for getting a good connection.
Snaps setting determines how many updates you recieve from the server. 20 to 30 for
56K connects in quake series 40 for high speed internet im sure the same for cod. (30 is fine).
*MAXPACKETS :: This setting puts a limit on the maximum amount of packets that can be sent to
the server via the client. This setting is useful for people with slower modems. Obviously we
all have high speed connects so set to at least 100. Lower maxpacket settings i.e 30 lowers ping
on screen but at the cost of registration.
*SM ENABLE :: Turns off unique Shadows ingame, it boosts FPS more than most commands.
*R DRAWDECALS :: Turns off details on walls and objects, however Punkbuster will kick you off for this at this time.
Looks like you copied it to the wrong game bro. Most of these commands are broken/cheat protected in MW3. The others that aren't are either not going to help at all (like multigpu, only set it to one if you have a multigpu card) or don't do anything at all thanks to the matchmaking system (like snaps and rate and pakdup)
First of all, they disabled the console in the whole game, EXCEPT the rcon in dedicated servers. And most of these commands that I have enabled in my config_mp.cfg aren't working. Even if the value is at "1", the game disables it because they probably "cheat protected" it. They are making the video games on PC like consoles...