Obviously blowing the surprise of possible avatar award goodies wasn't enough, as now determined data mining survivalists have uncovered what appear to be error messages.
These errors appear when gamers don't have Left 4 Dead 2 DLC maps installed, with the code mentioning the 'Miracle Pack' and 'Apocalyptic Pack', and offers to download them.
It would seem these are two planned DLC packs for the future, with the errors coded to offer at the time they appear, the option for users to download "content from Xbox LIVE Marketplace", spotted the , reports .
This PC demo code sure has been spilling spoiler guts on the floor. Have you been enjoying the sweet pre-order taste of the Left 4 Dead 2 demo, videogamer?