The chapter_necros2.zip file you have requested: Maps Levels Missions / Single Player / C to D Titles / Chapter Necros 2 for Quoth 2 - 1.73mb is not available. Perhaps try browsing all files for the game Quake and upload any files you want to share or are missing. This is the only information we could locate:
This map was originally intended for inclusion with the Lost Chapters pack. It's not great, but has some nice visuals and a bit of a unique take on the Knave theme.