To C.,
Found it, as directed by Knyaz Catalin – a narrow entry into the underground caves, hidden and unguarded. Can be approached on foot.
Once the assault on Eastridge Outpost begins, I will dispatch scouts to confirm the passage is secure.
Drogos
Scouting Report
The quest thread it belongs to
The game files this document under one quest code, and that code covers all 2 of these journal entries. It belongs to the thread; the data does not say which entry.