Two yao guai usually hang out near the northeastern tower, though they usually sleep at night.
At the southwestern base of the southwestern tower is the entrance to a military bunker, which holds a ham radio broadcasting the Civil Alert System Broadcast. Apart from that, the bunker contains only a military-grade circuit board, military-grade duct tape, a Novice-locked ammunition box and a Novice-locked crate with minor loot.
If Automatron is installed, the layout of this location will change. It will be controlled by the Rust Devils. There will be a main gate that has a leveled machine gun turret nearby. Further into the compound there will be a raised hut with minor loot inside which will lead on to walkways that go up to the satellite dishes. At the end of the walkway there will be a terminal that will unlock a door at the base of the northern tower which will lead to the Fort Hagen hangar. This terminal will not appear if the Sole Survivor has not started the quest Headhunting.
The entrance to the original military bunker (the one with a ham radio) is located under another satellite dish to the south.