The Green Run map itself is split into certain locations which are listed below, however the bus only stops at five of them in TranZit mode. Between the Bus Depot and the Diner there is a small tunnel which is accessible via the Bus or on foot. Also in the corn field, you can access the pylon through another corn field while meandering through a set of mazes. The final hidden stop is the Hunter's Cabin between the Power Plant and Town, inside the cabin is the Bowie Knife and a craftable item for the Thrustodyne Aeronautics Model 23 (commonly referred to as the Jet Gun).
The name "Green Run" is a reference to a United States Government experiment near Hanford that caused the release of high amounts of radiation in December 1949.
In the cornfield, the building used in Nacht der Untoten can be found. The only area players can enter is the spawn room, since the Help door is covered by debris, and the stairs are destroyed. There are no barriers or wall weapons to purchase, however, there is a part for the Thrustodyne Aeronautics Model 23.
It is possible to teleport throughout Green Run by going into the fog and bringing a Denizen under a green-lit lamp post. The player has to jump once on the portal to teleport to a random location in Green Run. The lampost has to be powered by either a nearby Turbine or turning on the power.
There is a hatch that can be used to gain access to the roof of the Diner to buy Galvaknuckles or to be used on the roof of the Bus, but not on both. However, the ladder can be set up on the back-left side of the Bus to get to the roof.
The regular version of the song can be heard in the Diner, if the player were to stay there.
It is possible to traverse almost the entire map by foot, although it can be fatal due to Denizens and lava pits.
It is also possible to traverse from the Bus Depot to Town on foot by jumping across the lava.
There is a musical easter egg that plays "Carrion" by Kevin Sherwood which is activated by interacting with three teddy bears.
The first teddy bear will be at the Bus Depot on the benches outside the building.
In Town, inside the bar will be the second teddy bear sitting on a chair to the right.
In Farm, the house will have mattresses upstairs near the barrier by the balcony. The third teddy bear will be on one of them.
There were originally three easter egg songs in TranZit, one being "Imma Try it Out" by Skrillex, the second being "Carry On" by Avenged Sevenfold, and the last being "Carrion" by Kevin Sherwood. This was patched and only Carrion was chosen to be the song in this map.