Overseer's log - Site Charlie is a holotape in Fallout 76.
Location[]
It can be found in an overseer's cache at R&G Processing Services, near the elevator to Site Charlie.
Transcript[]
The Overseer: Overseer's Log. Missile Silo Charlie.
I've now verified that all three missile silos still have fully operational security. No way inside, yet, but I'll scour all of Appalachia if I have to.