Well, well well, what's going on here? We're saying nothing about what's going on in the above image other than it is a screenshot taken in-game from Halo 3.
http://www.bungie.net/News/content.aspx?type=topnews&cid=12621 you can also watch it in 720p here.
looks awesome to me, nice details and nice lighting. the view distance looks really good too (like every other halo).