Some new screenshots from Halo 3 are available over at EW.com: EW.com: First Look: Halo 3.

Seems that every gaming publication now has an article titled "First Look: Halo 3". Heh. Anyway, these new screenies show off a little bit of the Elephant vehicle, the map "Shrine", and 4-player campaign co-op (with mention of campaign multiplayer scoring). Included in the series of screenies are some older ones too that were available on b.net a while back.