com_maxfps: This command control your FPS cap limit. This command is best set at "0" to remove any limit; freeing your graphics card to load as many frames as it can.(Should have vSync off as well) Some players like to set it to 100, but it would be better just to have it run freely instead of capped.
cl_maxpackets: This command is probably the best when it comes to hit registration and how often you update your position to the host/server. (there was this theory called the "sweetspot," that used to work, but doesn't work now so don't try to set it to 125. It won't work.) This command is best set at 100(max).
Snaps: This command can help with how often you receive updates from the server. Setting this to 30(max) will allow you to get more up-to-date player positions and events happening on the server.
cl_packetdup: This command has a impact on bandwidth and latency. What it does is send two copies of one packets to a host/server to help guarantee the server receives it. On a good connection it is best to set this to 0 so you don't send twice or even triple the amount of bandwidth worth of packets at the same time. It will allow for more frequent packet outputs and less bandwidth usage. On a bad connection with frequent packet drops/lossage it is best to set this to 1-5.(use trial-and-error to find what works best for you.)
This concludes my Client part.
For those who like to host or force host(party_connecttimeout 1). This one command right here can probably be your best friend.
Sv_network_fps: This controls how many Frames(updates) your CPU is allowed to make per second, it is also dependent on the GPU as well(don't ask why.) This setting is at a default of 50 for most average computers this is good, but for people with quad cores(Core 2 Qaud, Core i3, i5, and i7, or even AMD's Triple and Quad core setups) this is best set at 1000. Why so high? The higher the rate, the more updates, meaning when you send a player a update(packet) it will be the MOST recent update, allowing for the player to have better hit reg and less lag. This command requires com_maxfps to be at 0 or it will be useless.
lol, you just took this from AlterIW but nice guide anyway.
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