MAP03: Creature Caravan (Nerves of Steel)

MAP03: Creature Caravan is the third map of Nerves of Steel, designed by Impie in 2015 and constructed in Doom Builder 2.

Essentials
Take out the doormen and go down the elevator to the underground railway. Walk along the platform to the laboratory, where a small army of Red Moon lunatics will mob you. The lab forks in two directions: left and right. Grab the Plasma Repeater as you pass through here -- it isn't a secret, but it's easy to miss.

The right path curves past an office, a bathroom, and the red door. Keep going until you pass through the room of glowing green tanks containing human subjects, guarded by Cyborg Enforcers. Beyond is a pair of heavy doors opened by a switch: keep going straight to the room with the staircases. One stairway takes you to an office with the blue door, and another door that opens remotely. Take the other staircase and use the teleporter.

You appear in a courtyard with several Goroze chaingunners. Kill them to open the doors to the warehouse, which connects to the train platform. In the warehouse you will find the yellow keycard.

Go back to the lab and take the left path to the small lift, which carries you up to the yellow door. Beyond the door is a switch that opens the train. The blue keycard is in the locomotive. Watch out for the Wraith ambush as you return to the lab and take the right path again, this time to the blue door: beyond it is the red keycard and a switch that joins the two offices. Unlock the red door by the bathroom and escape.

Other Points of Interest
There is a newspaper dispenser on the train platform. If you "use" it, you will receive an Automap powerup that does not count as a secret.

The Aranchorb floating in the suspension tank dies when you reach the exit switch, allowing you to get 100% kills.

Secrets
At the drop point, two crates lean against the wall by the elevator. Shoot the right one to reveal a Soul Sphere.

There are light panels in the walls on either end of the train platform. "Use" the green one to lower the nearby crate and grab the Green Armor.

Grab the Radiation Suit from the office and walk on the train tracks -- without it, you will take heavy damage. The tracks go in a loop, and there is another platform on the other side, with a Soul Sphere and several Cyborg Enforcers. There is also a crate with a Nuclear Missle Launcher on top of it, which lowers the same way as the Green Armor crate described above -- you will have to move fast to reach it in time.

The warehouse has two secrets. In the long, narrow hall of crates, shoot the first crate to your left to get a Blue Armor. On the right you will find a crate with red eyes peering out of it: "use" this crate to reveal a Seeker Missile Launcher.

The middle toilet in the bathroom has a ventilation grate behind it. Break the toilet and "use" the wall to reveal an Invisibility Sphere.