Call of Duty 4 Rumble?

I was wondering if anybody knew if Call of Duty 4 shipped with rumble right out of the box, like Ratchet and Clank, or if they're going to offer it as downloadable at a later time, presumably when the U.S. rumble controllers come out?

Thanks, maybe this news is readily available but I'm too stupid to find it, so I'm relying upon the intelligence of the rest of you to make up for it ;).

I believe I read somewhere that it did. I'm not sure where so don't quote me on it, but im thinking that it is supported as of launch.