God mode for mw3 multiplayer - dll?

Only if your host and enable god mode to 1 with console

Here are your chances on getting what you want:
20% of people can code
2% of that can code what you want
0.5% of that will do what you want
0.4% of that will be reading this
0.1% of that will do it for free

Almost illogical

illogical = impossible