Since people are going to post it soon, I figure I would post it first.
Remember annoyingnewb? Well that's me. Here's how I did it.
Open up Wpe Pro
Target Engine.exe (Had to do this for the morons.)
Load the filter and the send packet list.
Turn on the filter and make a room.
start recording and say something in the chat room and press the red button. Right click on the packet that pops up and do set send list with id.
Then check combat arms broken and start and invite spammer and then press the play button with 100 milliseconds. Warning: Don't do this if your internet sucks!
Enjoy I guess.
If you don't understand this guide I might make a video tutorial...
Make sure you turn it off before you leave the game! Otherwise it's a guaranteed ban from nexon because you'll be spamming the chat room.
Oh, the packet id changes everytime you go to a different channel so you'll have to re set it.
Here is a screenshot