Packet Manipulation for a game server

I'm looking for someone who can develop a program to reject packets in a game. I run a game server, and to prevent people from using a certain weapon, I'd like to just drop all packets of someone firing this weapon. The game is Call of Duty 4: Modern Warfare. The game is on the Quake 3 Engine. The weapons I'd like to disable are the Grenade Launcher, RPG, Martyrdom, and Claymores. The packets use Quake 3 protocol (UDP). I'd like to be able to change the port that this packet is listened for on as well. The goal is to have a program that I can change what port I'm listening on. The program will listen for certain packets, and reject the ones that are from clients trying to shoot a grenade launcher/rpg or reject the packets sent by martyrdom or claymores. I am unable to provide packet sniffs, I would require someone else to do ALL the work; From packet sniffing, and identifying the packets, to building the program/script. I would really like it if this were do-able in AutoIT so I could implement it into my other project. If not, my second choice would be either C++ or Visual Basic. However, if you can send the source code as well as the compiled work, almost anything will work. I'd be willing to pay more depending on the quality of work and the time frame the project can be completed in. ## Deliverables Must have complete source code, FULLY documented. Poorly written, undocumented (or poorly documented), or otherwise sloppy coding will be denied. The interface must be user friendly.? The program must be STABLE. It must be able to run for large durations. It must not block any other packets. Blocking packets other than those listed will not work. The program must work on Windows XP, Vista, and Windows 7. The program must not be too system resource consuming. Consumption of more than 1 GB of 1300mhz - 1600mhz frequency ram is not acceptable. The program must not take more than 5% processor on an Intel i7 920.