Nuke was a project envisioned by Joe Robinson, announced on November 9, 2002. It was to be a total conversion with numerous coding changes, and six levels were made come November 12, 2002 when Robinson announced he had canceled the project.
Robinson most likely had a change of heart, as the project was mentioned as being worked on again on November 15, 2002. This was the last heard on the project.
It has been speculated that Nuke eventually morphed into Assault on Castle Totenhammer v0.3 which was also styled to be a total conversion.