There was a program out there that wus real nice to create lag. I forgot what it was called and what it did what ever it did it spammed your ip with sum crap or packet it. Im not all good with that kind of stuff but i used it back in the day when i played socom 2 for ps2 and would lag glitch it really does work. Works alot easier then downloading and using other ways to create lag.
Also a goodway to make lag is for people who have cable modems and have a standby button. If You unplug your wire from your pc you have about 5seconds and you will get d/ced but if you have a standby button you can lag for like 15seconds and still remain online without d/cing. For those of you who dont have a standby button or have DSL you can make your own. There tutorials all over the net im not going to do a big search you can check it for yourself.
P.S->
http://groups.msn.com/LAGSwitchMagicSwitchHere