I just thought this was pretty cool so I thought I'd share. First of all, I'll be releasing two ways to set fog. It doesn't seem like much, but people have been asking me and I thought eh why not.


First Method:
The first method utilizes the function SV_SetConfigString. This can be found at 0x822568A8 for tu8. SV_SetConfigString has two arguments, index and string. The index for fog on Modern Warfare 2 is 0xD or 13. SV_SetConfigString will set for all clients by the way, but if you want to set for a specific client refer to the second method. If we wanted to set an ugly blueish fog, we'd do something similar to so:



Second Method:
The second method surprisingly enough uses the server command. Most of you probably know what it is or have heard of it, so I'm not going to go into great detail. Basically, to set a client specific configuration string using the server command, you will use the character 0x64 or d. The rest remains the same as the first method and looks like so:


Using this you can configure colors and such and even make it so your gun doesn't appear in the fog (setting the first 0 to something like 10 will do just that). Here's what it looks like if you set what I posted:
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