We won't summarize the whole Halo 2 Preview at UGO, pointed out over at HBO by Louis Wu, but we'll just mention a few of the more... ahh, interesting bits of... ahh... information. Some of these aren't new, some of them are, and some of them... well...
Some of these-- like weak Prophets and mercenary Brutes-- seem a bit odd, especially since in the E3 demo, Brutes emerge from Covenant vehicles, and earlier articles attributed unique attacks to Prophets. However, time will tell.