A version of the Gears of War 3 single player campaign has leaked onto the internet in fully playable form. The game isn't scheduled to ship until September, but there are dozens of YouTube videos out there filled with spoilers from the game's story. There's no details yet on how the build was obtained and if it is related to the recent hacker attacks that have seemingly swept the gaming industry.
Microsoft was quick to respond and said that it is already investigating the issue and has law enforcement agencies and security teams researching the leak. "This content is not from a final build and is not representative of what fans will enjoy when the game launches," said Microsoft.
Source: Uk.xbox360.ign.com