MAP03: Waste Processing (Combustion)

Combustion maps
MAP01: Waystation MAP02: Receiving Yard MAP03: Waste Processing MAP04: Skirmish MAP05: Bloodbath MAP06: End

This level occupies the map slot MAP03. For other maps which occupy this slot, see Category:MAP03.

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MAP03: Waste Processing is the third map of Combustion. It was designed by Fiendish and uses the music track "Smoky Alley" by BlurryBoy.

Walkthrough

Map of Waste Processing

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.

Secrets

1. At the south end with the blue key, find a dead shotgun guy and a shotgun and go to the wall north of there. Use the red button on the left side and go west to get a plasma gun. (sector 130)
2. At the west side, drop into the nukage below and go to the south wall. Press the middle of the wall to find medikits, a megaarmor, and a box of rockets. (sector 737)
3. In the room past the yellow door, open either of the west vents to find a rocket, a medikit, and a computer area map. (sector 469)
4. Go to the red key teleporter, then go around to the northwest side of the teleporter and flip the switch. Leave and head north from there to the red door, then veer east to get a soul sphere. (sector 97)

Speedrunning

Current records

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

Run	Time	Player	Date	File	Notes
UV speed
NM speed
UV max	4:58.91	Andrea Rovenski	2025-08-08	combust03-458.zip
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist
NoMo	1:23.49	Santtu Pesonen (MFG38)	2025-12-17	comb03o12349.zip

The data was last verified in its entirety on January 9, 2026.

Statistics

Map data

Things	621
Vertices	2996*
Linedefs	3242
Sidedefs	4940
Sectors	745

* The vertex count without the effect of node building is 2529.

Things

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

Single-player
Monsters	1-2	3	4-5
Zombieman	17	14	14
Shotgun guy	22	20	21
Heavy weapon dude	4	11	17
Imp	72	69	74
Lost soul	0	0	1
Demon	3	5	7
Revenant	0	3	5
Cacodemon	6	11	14
Hell knight	4	6	6
Arachnotron	0	0	2
Mancubus	2	4	4
Arch-vile	1
Weapons	1-2	3	4-5
Shotgun	10	12	11
Super shotgun	1
Rocket launcher	2
Plasma gun	2
Ammunition	1-2	3	4-5
Clip	12
Box of bullets	7
4 shotgun shells	20	19	19
Box of shotgun shells	1
Rocket	35	35	37
Box of rockets	3
Energy cell	2
Energy cell pack	1
Health & Armor	1-2	3	4-5
Stimpack	33	31	31
Medikit	28	24	23
Armor	3
Megaarmor	1
Items	1-2	3	4-5
Armor bonus	24
Health bonus	145
Supercharge	1
Computer area map	1
Radiation shielding suit	4
Keys	1-2	3	4-5
Blue keycard	1
Red keycard	1
Yellow keycard	1
Miscellaneous	1-2	3	4-5
Exploding barrel	39	39	37
Teleport landing	3

Multiplayer
Monsters	1-2	3	4-5
Zombieman	17	14	14
Shotgun guy	22	20	21
Heavy weapon dude	4	11	17
Imp	72	69	74
Lost soul	0	0	1
Demon	3	5	7
Revenant	0	3	5
Cacodemon	6	11	14
Hell knight	4	6	6
Arachnotron	0	0	2
Mancubus	2	4	4
Arch-vile	1
Weapons	1-2	3	4-5
Shotgun	10	12	11
Super shotgun	1
Rocket launcher	2
Plasma gun	2
Ammunition	1-2	3	4-5
Clip	12
Box of bullets	7
4 shotgun shells	20	19	19
Box of shotgun shells	1
Rocket	35	35	37
Box of rockets	3
Energy cell	2
Energy cell pack	1
Health & Armor	1-2	3	4-5
Stimpack	33	31	31
Medikit	28	24	23
Armor	3
Megaarmor	1
Items	1-2	3	4-5
Armor bonus	24
Health bonus	145
Supercharge	1
Computer area map	1
Radiation shielding suit	4
Keys	1-2	3	4-5
Blue keycard	1
Red keycard	1
Yellow keycard	1
Miscellaneous	1-2	3	4-5
Cooperative start	4
Exploding barrel	39	39	37
Teleport landing	3