Sitting atop the western freeway, it consists of two roads: the freeway and the old highway. The old highway connects Mass Pike Tunnel West to the interchange and leads to the Nuka-World transit center at the west end of the highway. At the bottom and top of the freeway, the Sole Survivor will come across several Gunners. There are two elevators that can be used to reach the upper and lower sections of the freeway. The elevator to the lower freeway is located north of the interchange, while the second is located in the middle of the interchange, guarded by several Gunners. The uppermost section contains very few Gunners, while the lower section has several and an assaultron, as well as a Gunner commander with power armor (T-45/T-51 and very rarely T-60). It also consists of numerous shacks containing loot. Near the power armor station, there is a shack that contains several items and a crate containing rare loot.
A standing power armor - On the road northwest of the Mass Pike Interchange at a military checkpoint. Going west to Poseidon Reservoir, one will see a couple of burned cars and a truck full of cigarette machines. Right beside the door.
In some cases the power armor pieces and frame will be standing inside the Gunner commander's shack in the same space as the bed. The power armor including pieces (armor pieces, fusion core) are inaccessible. To workaround this, go to the power armor station and activate it: the power armor frame and all pieces will be placed on the power armor station.