As far as we know there are like 11 levels so what would your reaction be if Nick Fury had a secret level of Shield privy only to him? Sort of like the DC comics Suicide Squad where various teams of incarcerated super villains where given high risk missions in exchange for shaving off a few years of their sentence while also delving into mad science experiments around the lines of something similar to the Weapon X program. Something like this would probably best be called Level 0. What do you think? What would your reaction be if Marvel did a comic series where the slogan was "Shield: Welcome to Level 0."? I wouldn't be surprised if Nick Fury did have his own Level Zero with super villains but I think him also being part of a group conducting inhuman experiments like Weapon X might be pushing it.