First off, in COD4 there's only 10 prestiges, secondly generally asking for this stuff is not approved in general console in any of the console sections, post it in the overall section on the screen before this when u click on xbox 360 section. You'll have better luck, or offer some sort of payment. Getting the gold guns is relatively easy you just need to complete all challenges for that class (aka get all camos) hoped I helped.