I’m not familiar with Cities Without Number, so I can only evaluate this submission as a generic protection mission.
The scenario is rich in detail, and the two main NPCs are extremely well written. However, with a plain text layout, I find it some what difficult to scan and quickly identify key information, as a GM would need to do during a session. A bit more editing and structure would greatly improve its usability at the table.
I would also suggest enriching the "Conclusion" section with other possible outcomes, such as: "what happens if Wolfgang is killed", or "what happens if the PCs choose to side with Moretta". These kinds of twists are very helpful for a GM. Knowing my own players, they would almost certainly end up helping the werewolf.