Wolfwing is a mod for registered Wolfenstein. It was made by Hellblazer and was released on June 2, 2011.
The mod features 10 new levels, and is based on NovoWolf. Level design varies in quality, but mainly the 10 new levels make for a pretty extensive play.
The remaining 11 levels in the mod were retained from the original NovoWolf. This was all borrowed without permission.