Halo 4 releases during the first week of November and already the footage of the game is online. The source for the leak is unclear, but the developers want the material reported.

On Oct. 12, images of fully-printed Halo 4 game discs started to surface on the Internet. Additionally, several YouTube videos showed the game's campaign and multiplayer mode.

The Halo 4 discs covered the game's campaign including sensitive details like the ending. Torrent Web sites made the game freely available, which caused content across multiplayer and campaign to go live.

The developer posted on its Halo Waypoint blog, praising users for reporting material. Microsoft is investigating the source of the leaks.

"We are working closely with our security teams and law enforcement to address the situation. Piracy is illegal and we are taking vigorous action against it. We have poured our blood, sweat, and tears into Halo 4, and we want you to have the best possible experience with our game, come November 6. If you're interested in staying spoiler-free, we encourage you to exercise caution when visiting various websites, social networking services, and forums," said developer 343 Industries.

Considering that media review copies are probably not yet released, a possibility exists that the leaks may have come from the developers or the manufacturing line. A user streaming the game claimed his father is a 343 Industries employee. If the claim is true then the employee could be in trouble.

"I've worked for over 3 years making Halo 4. Please avoid spoilers and leaks from thieves for 3 more weeks until the game is out," commented John Holmes, Halo 4 Creative Director, on his Twitter page. 

Halo 4 is highly anticipated by consumers and media. At E3 2012, the game took a host of awards due to its impressive campaign demo and multiplayer booths. The transition from Bungie, the original developers, to 343 Industries means a new developer is building the next major installment in a 10-year franchise. Earning long-time fans' trust is essential if the game is to generate the right response prior to the next Halo title, the second instalment in the "Reclaimer Trilogy."

Halo 4 launches on Nov. 6 for Xbox 360.