MAP21: Refueling Base (The Long Trek Back Home)

MAP21: Refueling Base is the twenty-first map of The Long Trek Back Home. It was designed by hervoheebo, based on MAP10: Refueling Base from Doom II by Sandy Petersen and Tom Hall, and uses an edited version of the original music track "The Demon's Dead" by Robert Prince, distinct from the one used on MAP15: Suburbs.

Secrets

 * 1) Head east from the start and open the southwest wall near the door to get a super shotgun. (sector 26)
 * 2) At the southwest end, climb up on the west side, then jump off the ledge to teleport. Turn around and open the northeast wall to get a chaingun and armor bonuses. (sector 617)
 * 3) In the dark room at the south end, head west and south to get a box of ammo, a radiation suit, and an energy cell pack. The switch behind the fence north of the secret can turn on the lights, allowing you to see here. (sector 557)
 * 4) In the gray area at the south end, go to the ammo clip and stimpacks for the walls to lower. Head northeast and open a wall there to find a computer. Use it, then head back to the lowered wall and go southeast into a teleporter. This takes you to stimpacks, more ammo clips, and boxes of ammo. (sector 626)
 * 5) In the northeast area, head to the northeast side and pick up the health bonus. Head north and west to a soul sphere. (sector 595)
 * 6) Entering Secret #5 makes a lift at the southeast end of the area go up and down. Get on it and ride up to get health bonuses. (sector 245)
 * 7) In the southeast room, get onto the north ledge and look west, shooting a switch. Leave to the west and go up the northeast steps to find an opening to the east with a backpack, an energy cell, and a box of rockets. (sector 602)
 * 8) In the room south of the dark room are six blocks. Use the bloody side of the northeast block to lower the middle block on the south row. Ride up and shoot at the fire to the south to open a wall to the east. This area is a path of armor bonuses and energy cells that bypasses the crushers in this area. (sector 191)
 * 9) Head southeast from the central area and south into the cave. At the lift lower the cracked wall nearby and ride up to get an invulnerability. (sector 392)
 * 10) Head southeast from the central area and quickly run south, then east in the cave. Quickly go north before the wall rises to enter a teleporter. Press the switch after you teleport to get a light amplification visor and a megasphere. (sector 397)
 * 11) Head northeast from the central area and up the steps. Go to the partial invisibility and open a wall to the east to get a BFG9000. (sector 558)
 * 12) Continue down the hall south of Secret #11 and open the blue door. In the next room, step onto the plate to the south, then enter the room to the east. Head to the north side and use the wall in the dead end to the south, then go around the structure to the south side and quickly enter the teleporter there to teleport to shotgun shells, boxes of ammo, and energy cells. (sector 95)
 * 13) In the dark maze at the northwest end, head to the middle and enter a corridor to the west. Use the wall at the dead end, then leave and head south to get health and armor bonuses. (sector 591)
 * 14) At the southwest end of the dark maze, open a wall to the northwest to find a berserk pack. (sector 609)
 * 15) Run south across the lava from Secret #14 until you teleport to a courtyard at the north end, which contains a BFG9000 and a computer area map. (sector 522)

Current records
The records for the map at the Doom Speed Demo Archive are:

The (absence of) data was last verified in its entirety on November 4, 2022.

Player spawns
This level contains ten spawn points:
 * 1) facing south. (thing 918)
 * 2) facing north-east. (thing 920)
 * 3) facing east. (thing 921)
 * 4) facing north. (thing 922)
 * 5) facing south-west. (thing 923)
 * 6) facing east. (thing 924)
 * 7) facing south. (thing 925)
 * 8) facing north. (thing 926)
 * 9) facing south. (thing 927)
 * 10) facing north. (thing 928)

Things
This level contains the following numbers of things per skill level: