MAP01: The Combine (Master Levels)

Master Levels maps
MAP01: Attack MAP01: Canyon MAP01: The Catwalk MAP01: The Fistula MAP01: The Combine MAP01: Subspace MAP01: Paradox MAP01: Subterra MAP01: The Garrison MAP25: Black Tower MAP03: Virgil's Lead MAP05: Minos' Judgement MAP07: Nessus MAP08: Geryon MAP09: Vesperas MAP01: Titan Manor MAP01: Trapped on Titan MAP31: The Express Elevator to Hell MAP32: Bad Dream MAP07: Bloodsea Keep MAP07: Mephisto's Maosoleum
This level has a console version.

This level occupies the map slot MAP01. For other maps which occupy this slot, see Category:MAP01.

The Combine is a level from the Master Levels for Doom II. It was designed by Christen Klie, and is contained in the file COMBINE.WAD.

In the version for Doom + Doom II, this level uses the music track "The Demon's Dead".

This level was later ported to PlayStation Final Doom as MAP04: Combine.

Walkthrough

Map of The Combine

Letters in italics refer to marked spots on the map. Sector, thing, and linedef numbers in boldface are secrets which count toward the end-of-level tally.

Essentials

• From the starting area go to the right part of the brick tunnel. Open the door leading to the staircase room.
• Walk upstairs until you reach either door in the north-west or south-west.
• In that room open the door in the north part. In the computer room grab the blue key lying on the floor in the end of the staircase then leave the room. Return to the first staircase room.
• Use either door in the north-west (the other is in the north-east). Drop down to the pool and go to the very end of the pool, to the western side of it. Walk up the unnoticeable stairs. Open either of two blue doors and enter the teleporter.
• Pick up the red skull and drop down from the stand you teleported on.
• Return to that staircase room again. Open the red door in the eastern part.
• In that dangerous room carefully get to the southern part and open the door. In the next room press the switch at the very end.
• Return to the staircase room, walking through the room, behind the doors, opens either door in the west to get to the small outside area where you grabbed the red key. Open the red door. Inside enter an alcove to your left. As you enter it a switch will be revealed. Pressing this button will reveal another button. Keep on pressing until you temporarily lower the stand with the yellow key.
• After getting the final key go to the beginning of the level. In the corridor open the door in the southern part. Shoot the switch inside a small building. Enter the yellow door and end the level.

Secrets

1. The area on which you begin the level is flagged as secret, and is thus impossible to miss. (sector 0)

Areas / screenshots

• 

  A poolside massacre.

• 

  The staircase room, with several doors

• 

  From the previous room you know the access way to the upper ledge.

• 

  The rocket launcher room.

• 

  Monsters guard the red keycard

• 

  A radiation shielding suit in the nukage area

• 

  The nukage tunnel

• 

  A maze of ledges. Destroy the monsters below before you advance.

• 

  The south-east room with its stepped ceiling

• 

  Solve another switch puzzle to obtain the key.

• 

  The exit area (all three keys must be present).

Speedrunning

Current records

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

Run	Time	Player	Date	File	Notes
UV speed	1:28.09	Doug Merrill (Opulent)	1999-12-31	combine-128.zip
NM speed
UV max	1:42.26	Phoenyx	2022-07-06	comb_142.zip
NM 100S	1:55.03	Jean-Charles Dorne (JCD)	2021-07-08	comns155.zip
UV -fast
UV -respawn
UV Tyson
UV pacifist

The data was last verified in its entirety on January 15, 2023.

Deathmatch

Player spawns

This level contains four spawn points:

1. facing south-west. (thing 28)
2. facing east. (thing 39)
3. facing north. (thing 44)
4. facing west. (thing 46)

Statistics

Map data

Things	195
Vertices	864*
Linedefs	926
Sidedefs	1297
Sectors	187

* The vertex count without the effect of node building is 726.

Things

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

Single-player
Monsters	1-2	3	4-5
Zombieman	5	3	3
Shotgun guy	18	31	30
Heavy weapon dude	2	3	10
Imp	13	19	21
Spectre	0	1	1
Weapons	1-2	3	4-5
Super shotgun	1
Chaingun	1
Rocket launcher	1
Plasma gun	1
Ammunition	1-2	3	4-5
Clip	3
Box of bullets	1
4 shotgun shells	3
Box of rockets	1
Energy cell	3
Energy cell pack	2
Health & Armor	1-2	3	4-5
Stimpack	8
Medikit	1
Armor	1
Megaarmor	1
Items	1-2	3	4-5
Armor bonus	37
Health bonus	34
Supercharge	1
Partial invisibility	1
Radiation shielding suit	1
Keys	1-2	3	4-5
Blue skull key	1
Red skull key	1
Yellow skull key	1
Miscellaneous	1-2	3	4-5
Teleport landing	6

Multiplayer
Monsters	1-2	3	4-5
Zombieman	5	3	3
Shotgun guy	18	31	30
Heavy weapon dude	2	3	10
Imp	13	19	21
Spectre	0	1	1
Weapons	1-2	3	4-5
Chainsaw	1
Super shotgun	2
Chaingun	2
Rocket launcher	2
Plasma gun	2
Ammunition	1-2	3	4-5
Clip	3
Box of bullets	1
4 shotgun shells	3
Box of rockets	1
Energy cell	3
Energy cell pack	2
Health & Armor	1-2	3	4-5
Stimpack	8
Medikit	1
Armor	1
Megaarmor	1
Items	1-2	3	4-5
Armor bonus	37
Health bonus	34
Supercharge	1
Partial invisibility	1
Radiation shielding suit	1
Keys	1-2	3	4-5
Blue skull key	1
Red skull key	1
Yellow skull key	1
Miscellaneous	1-2	3	4-5
Cooperative start	4
Deathmatch start	4
Teleport landing	6

Trivia

• In Doom + Doom II, the starting sector no longer counts as a secret. This means there are no longer any secrets in this level.

External links

• MAP01: The Combine (Master Levels) demos at the Doom Speed Demo Archive
• Review at ONEMANDOOM: WAD Reviews