Earlier this week, Bungie said it would be "dropping a multiplayer bomb". It appears a Taiwanese site has dropped that bomb a little early, with the leak of what looks a lot like a new trailer for the game.
Now, this may be an elaborate hoax, but if it is, it's a cruel one. Because this looks like a pleasant step up from Halo's current multiplayer system. Stab moves, jet packs, plenty of explosions... yeah, this is nice.
Nice, but is it real? It might be a fake. Then again, it might be a "release" on the part of Bungie disguised as a "leak". You never know these days. Hopefully we'll find out which later today.
Update: It's official, Bungie just released it on their site.