The Haunting.
The location is supposed to be empty. Condemned, half-rotted, and buried under the kind of local stories soldiers tell when they want to make a night op more interesting. Task Force 141 does not believe in ghosts. Then the lights start flickering, every radio on the property erupts into song at three in the morning, and an invisible problem with the humor of a sleep-deprived twenty-something decides to adopt the team.