Wicked Shipping container trucks

These four  are unmarked locations in Fallout 4.

Container 1
Locked, Wicked Shipping fleet lockup, Zone 1, yard

Container 2
Locked Master, Zone 1 road south of Drumlin Diner

Container 3
Unlocked and open, Zone 2, road west of Mass Fusion Containment Shed

Container 4
Locked Maser, Zone 6, road between South Boston checkpoint and Andrew station, is being used as a Railroad cache - marker below door

Appearances
appears only in Fallout 4.