Cod4 xbox 360 custom maps

PLEASE HELP ME!!! Is it possible to use custom maps on the xbox 360? if so how is this possible? I downloaded a zip file custom map on my computer and inside it were 2 .ff files and a .iwd file. how am I able to use these custom maps on the xbox 360?...

PLEASE HELP ME ASAP!!! thanks

there isnt a way to do this unless you have a modded 360. you can't download something from a computer like this because it is not something that can be streamed or uploaded to a 360 from a computer. the only files you can upload from your computer to your 360 are music files and pictures

put it on a disk
that's what I did

that didn't work

your 360 has no possible way of reading a file like that. unless you have modded your 360 to read such files you wont be able to. since cod4 is a pc game as well as a ps3, 360, an wii title, if this is possible then you downloaded the wrong file type.

^ you would lol