413a4d7a____Fallout__New_Vegas_and_more__Description
[Stage] 2 [Description] 
I used explosives to clear the collapsed section in the bat cave, and it turns out there's a sealed metal door behind it with some pre-War military markings on it.
Clear the Rubble In Front of the military Door in Mine Cave 1 - The Fallout wiki - Fallout: New Vegas and more
Description