MAP04: Skirmish (Combustion)

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

This level occupies the map slot MAP04. For other maps which occupy this slot, see Category:MAP04.

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MAP04: Skirmish is the fourth map of Combustion. It was designed by Fiendish and uses the music track "Shotgun Shawarma" by Rogue Akai and Sumo, from Alien Vendetta MIDI Pack.

Walkthrough

Map of Skirmish

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 southeast part of the main area, there are several terminals on the southeast walls. Go to the leftmost one which is green, then use the red button south of it. This opens the red terminal south of that green terminal, which has a berserk pack. (sector 34)
2. Crossing the central bridge going southwest will open up a room once you reach the west side. Head south to this new room and go to the northwest corner, finding a switch here. This opens up a compartment northeast of the room which has a medikit and a box of rockets. (sector 71)
3. In the red key area, go through the northeast waterfall to find a soul sphere. (sector 457)

Speedrunning

Current records

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

Run	Time	Player	Date	File	Notes
UV speed	1:17.54	ChaingunChaCha	2025-08-13	com04p117.zip	Cross-listed from Pacifist
NM speed
UV max	3:49.63	Andrea Rovenski	2025-08-09	combust04-349.zip
NM 100S
UV -fast
UV -respawn
UV Tyson
UV pacifist	1:17.54	ChaingunChaCha	2025-08-13	com04p117.zip
NoMo	0:53.66	Santtu Pesonen (MFG38)	2025-12-17	comb04o5366.zip

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

Statistics

Map data

Things	409
Vertices	2181*
Linedefs	2413
Sidedefs	3515
Sectors	520

* The vertex count without the effect of node building is 1902.

Things

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

Single-player
Monsters	1-2	3	4-5
Zombieman	28
Shotgun guy	12	15	19
Heavy weapon dude	3	4	10
Imp	40	46	46
Demon	2	3	4
Revenant	4	7	10
Cacodemon	6	6	8
Pain elemental	0	2	4
Hell knight	4	3	5
Baron of Hell	0	1	1
Arachnotron	1	1	2
Mancubus	1	3	3
Weapons	1-2	3	4-5
Chaingun	2
Rocket launcher	2
Ammunition	1-2	3	4-5
Clip	6
Box of bullets	10	10	12
4 shotgun shells	6	5	5
Box of shotgun shells	1
Rocket	17	17	20
Box of rockets	10	12	14
Health & Armor	1-2	3	4-5
Stimpack	27
Medikit	12	12	11
Armor	2
Items	1-2	3	4-5
Armor bonus	59
Health bonus	9
Supercharge	1
Berserk	1
Keys	1-2	3	4-5
Blue keycard	1
Red keycard	1
Miscellaneous	1-2	3	4-5
Exploding barrel	32
Teleport landing	18

Multiplayer
Monsters	1-2	3	4-5
Zombieman	28
Shotgun guy	12	15	19
Heavy weapon dude	3	4	10
Imp	40	46	46
Demon	2	3	4
Revenant	4	7	10
Cacodemon	6	6	8
Pain elemental	0	2	4
Hell knight	4	3	5
Baron of Hell	0	1	1
Arachnotron	1	1	2
Mancubus	1	3	3
Weapons	1-2	3	4-5
Chaingun	2
Rocket launcher	2
Ammunition	1-2	3	4-5
Clip	6
Box of bullets	10	10	12
4 shotgun shells	6	5	5
Box of shotgun shells	1
Rocket	17	17	20
Box of rockets	10	12	14
Health & Armor	1-2	3	4-5
Stimpack	27
Medikit	12	12	11
Armor	2
Items	1-2	3	4-5
Armor bonus	59
Health bonus	9
Supercharge	1
Berserk	1
Keys	1-2	3	4-5
Blue keycard	1
Red keycard	1
Miscellaneous	1-2	3	4-5
Cooperative start	4
Exploding barrel	32
Teleport landing	18