Source: http://press.xbox360.com/products/p51/halo-4?grp=Blockbuster+Games&event=5
Click on the tab “Artwork.” You can see by the title that it’s a cryptum.
Here’s the artwork itself:
You can believe that Master Chief is in for some major SHI…er bad stuff when this thing opens up.
Here’s a comparison pic from the trailer and the graphic above: