Map 15: Industrial Zone

Guide to Doom II's Industrial Zone map, detailing enemy locations, item pickups, and secrets, including the bugged secret.

Note: A secret in this level (a hidden teleporter inside a secret wall) is bugged, making 100% secrets difficult. It may require a Pain Elemental to push you into the trigger. The goal for most players should be 10/11 secrets (90%). This secret is not worth the effort and remains bugged in the PS4 version.

Walkthrough:

1. At the start, kill the two hit-scan enemies in front of you and take the nearby lift down.
2. You will enter a northern, open area with scattered buildings. Roam and eliminate all hit-scan enemies (Zombiemen, Shotgunners), Imps on higher levels, and Chaingunners. Save frequently, especially when encountering Chaingunners.
3. From the lift, turn left to find a switch. Activating it lowers a rocky wall ahead. Clear out the hit-scan enemies behind it, including the chaingunner to the upper right. Use the stairs to reach the Mega Armor. A Radiation Suit is in the middle of the lava pit, but not essential.
4. Head to the southwest building surrounded by lava. Take the stairs up to get a view of higher enemies. At the top, find a Rocket Launcher and a teleporter to the west. You must run at the teleporter to make it.
5. This teleporter leads to an upper ledge of a nearby building. Run east to a lower ledge with a switch. Hitting this switch lowers a wall below.
6. You can drop down or take a life on the north side to reach the lower area. Defeat the Cacodemon, Imp, and Shotgunner. You can find a box of shells and a Medkit by dropping down. Find the teleporter in the corner. A Red Key Card is visible on some boxes, and a Berserker Kit is behind another box, both currently unreachable.
7. Gather items in the room and re-enter the teleporter. You will land on top of the Red Key Card. Drop down onto the Berserker Pack. Lower the nearby box to find [SECRET 1/11].
8. Re-enter the teleporter and fall down the hole on your left. Kill the Shotgunner and Cacodemon. As you exit the window, a piece of floor raises. Return to the Red Key Room (use the northern lift) and take the teleporter again. Fall down the hole again to reach an upper ledge. Run to the ledge with a Chaingun to unlock [SECRET 2/11].
9. Go to the western building south of the lava area. Use the face switch and kill the Imps on the higher ledge. Open the door with the Red Key. At the end of the path is a teleporter. To the left, a secret door can be opened, leading to [SECRET 3/11].
10. This secret drops you into lava. Run across for a Backpack and rockets. Use the nearby switch to exit via a lift. Use the subsequent lifts to ascend. Return to the Red Key door and use the teleporter to continue.
11. You will arrive at the central building. Clear enemies from the outer ledges. The switch near you lowers a lift. Enemies, including Chaingunners, are located around this building, some behind steel fences to the north. Note the