Wednesday the 20th of July, we will release Autoupdate 4. This is a small file that updates your version of Halo 2 to address various issues. It only takes a moment to download the file, but it is required for continued play on Xbox Live. If you do not wish to download the file, that is your choice, however, you will not be able to play Halo 2 on the Live service.So you've been warned. Read on for lots of specific info.