Halo Three reviewed in Slate:

More important, there are two new modes that will help the game retain an NFL-like parity six months or a year from now.

The first is the "theater," where gamers can watch their most recent online matches to see what they did wrong and, more important, to see what other gamers did right. That's right: Halo 3 now has game film. (It's only a matter of time before Bill Belichick becomes a Halo 3 master.) Don't understand why you got killed 75 times in the first five minutes of an online skirmish? Flip on the theater mode to watch the game from your opponents' perspective, to see how they beat you.