Luke's holotape is a holotape in Fallout 76, introduced in the Milepost Zero update.
Location[]
The tape can be found on the corpse of Luke in a cage at Stony Man Lookout, during the quest A Bump in the Road.
Transcript[]
Luke: H-hello? Is this thing even on? *Panting noise* If anyone happens upon this Holotape, you gotta take it down to Marley at Milepost Zero. It's in an exit Tunnel at the bottom of the National Park. She'll make it worth your while, promise. Marley, if you're listening to this... I'm sorry. I fucked up. Thought we could take a shorter route, but Super Mutants raided the delivery and took the cargo. Smelt the cow from a mile away. I think it's only a matter of time before they catch my scent, too. I'm gonna make a break for it, but don't much fancy my chances. Marley, If I don't get to tell you later... oh shit. Oh shit, they see me.