Bungie reveal teaser trailer, possible Halo 3 campaign expansion

A countdown on Bungie’s official website finished today, revealing a minute-long trailer named ‘Keep It Clean’. The video depicts a futuristic-looking city apparently being bombarded by space pods, with the tagline ‘Prepare to Drop’. The video finishes with the Halo 3 logo, leaving no doubt that it’s not a new game being announced here.

“We hope you haven’t dedicated too much time and stress to this 12-hour long countdown event,” says Bungie of the trailer. “We’re excited to finally share this with you.”

The video can be viewed on Bungie.net and on YouTube and by the time you read this it should be available to download on the Xbox Live Marketplace. The video’s description is “High action and deep mystery await players in this new Halo 3 campaign experience.”

Some eagle-eyed Halo fan reckons he’s spotted a hidden date within the teaser trailer that points to the expansion being released on 6th January 2009. See the below picture for evidence.