Left 4 Dead Infected Populations

Infected populations control which kinds of common infected can be spawned in the different sections of your map.

TSA workers, a baggage handler, a mechanic and citizens in the "Dead Air" terminal.

An uncommon Ceda Agent among Common infected, in the front of the "Vannah" hotel.

For example, infected populations can cause:

patients, nurses, and surgeons to spawn in a hospital
military personnel to spawn in a military base
rural citizens to spawn on a farm
police officers to spawn on a street filled with police cars

The basics

Each defined population has a name and a list of model names with associated percentages. The percentages within each population add up to 100% and define how frequently each type of infected should be spawned within the area.

For example, the "hospital" population is defined as:

hospital
	{
		common_male01		15
		common_patient_male01 	40
		common_worker_male01	15
		common_female_nurse01	15
		common_surgeon_male01	10
	}

This means that any areas with the name "hospital" would spawn approximately:

15% common_male01
40% common_patient_male01
15% common_worker_male01
15% common_female_nurse01
10% common_surgeon_male01

Additionally, the populations may also allow certain special infected to spawn. This is typically used in conjunction with Info_zombie_spawn. Currently only hunters, boomers, and smokers can be spawned through infected populations.

To specify a default population for the whole map, set "z_population" to the name of the desired population entry.

To specify populations within your map, your nav mesh areas must be given place names corresponding to those defined in population.txt, located within the "scripts" directory of your Left 4 Dead installation.

How To Use Them In a Map

Load your map in Left 4 Dead.
Enable cheats by typing "sv_cheats 1" into the console.
Type "nav_edit 1" in the console to see the nav mesh.
Type "nav_toggle_place_mode" into the console and hit enter (or use "nav_set_place_mode"). You should hear a beep signaling it was turned on. There is a different sound when you disable this.
Type "nav_use_place <place name>" in the console. This is like picking the color of a paintbrush in an image editing program. It decides what place name will be used for all of the place commands. This place name will be referred to as your chosen place name.
Paint your nav areas.
1. Type "nav_place_floodfill" in the console to flood fill, using the chosen place name, all areas that can be reached from the nav area at which your cursor is pointed (as well as the area at which your cursor is pointed). You should use this first to set your map's default spawn type. For instance, if you're making a Hospital map but want to fine-tune a few areas, you want to set the entire map to use "hospital" so that there are no remaining nav areas using "default".
2. You can paint areas individually using "nav_place_set".
3. You can also turn on a special painting mode with "nav_toggle_place_painting". This command will paint every nav area you look at with the chosen place name.
4. You can use "nav_place_pick" as a sort of eyedropper for your chosen place name. It will pick the place name from the area you are looking at at and use it as your new chosen place name.
Type "nav_toggle_place_mode" into the console and hit enter (or use "nav_set_place_mode") to turn place mode off. You'll hear a different sound signifying that it has been turned off.
Save the navigation mesh by typing "nav_save" into the console.
Use "nav_edit 0" to turn off the nav grid display.

List of Useful Commands

z_population: Sets the default population for all nav areas that do not specify a place name.
nav_set_place_mode <0/1>: Sets the editor into or out of place mode. Place mode allows labeling of area with place names.
nav_toggle_place_mode: Toggle the editor into and out of place mode. Place mode allows labeling of area with place names.
nav_toggle_place_painting: Toggles place painting mode. When place painting, pointing at an area will 'paint' it with the chosen place name.
nav_place_list: Lists all place names used in the map.
nav_mark_unnamed: Marks all areas with no place name. Useful for finding stray areas missed while place painting.
nav_use_place <optional: place name>: If used without arguments, all available place names will be listed. If a place name argument is given, it becomes the chosen place name.
nav_place_floodfill: Sets the place name of the area at which your cursor is pointed to the chosen place name, and 'flood-fills' the chosen place name to all areas that can be reached from the area at which your cursor is pointed.
nav_place_pick: Changes the chosen place name to the place of the area under the cursor.
nav_place_replace: Replaces all instances of the first place name with the second place name.
nav_place_set: Sets the place name of all selected areas to the chosen place name.

Left 4 Dead Populations

Urban

defaulturban

30% common_male01
25% common_female01
15% common_male_suit
10% common_police_male01
10% common_military_male01
10% common_worker_male01

police

50% common_police_male01
20% common_male01
20% common_female01
10% common_military_male01

maintenance

35% common_worker_male01
25% common_male01
20% common_female01
20% common_military_male01

hospitalgrounds

20% common_male01
20% common_female01
15% common_police_male01
15% common_military_male01
15% common_worker_male01
15% common_male_suit

hospital

40% common_patient_male01
15% common_male01
15% common_worker_male01
15% common_female_nurse01
10% common_surgeon_male01

hospitalconstruction

30% common_worker_male01
20% common_patient_male01
20% common_female_nurse01
20% common_male01
10% common_surgeon_male01

airport

20% common_female01
20% common_male_suit
15% common_worker_male01
15% common_male_baggagehandler_01
15% common_tsaagent_male01
15% common_male_pilot

airportfinale

30% common_male_baggagehandler_01
20% common_tsaagent_male01
20% common_male_pilot
10% common_female01
10% common_male_suit
10% common_worker_male01

Rural

defaultrural

50% common_male_rural01
20% common_female_rural01
10% common_police_male01
10% common_military_male01
10% common_worker_male01

Special

church

Note: This is used with the Info_zombie_spawn located inside of the safe room in the church of Death Toll 3 to spawn a random special infected once the crescendo event is finished.

50% boomer
25% hunter
25% smoker

Default and Others

default

30% common_male01
25% common_female01
15% common_police_male01
10% common_military_male01
10% common_worker_male01
10% common_male_suit

test_common_male_suit

100% common_male_suit

zoo

20% common_male01
10% common_female01
10% common_male_rural01
10% common_male_suit
5% common_female_rural01
5% common_female_nurse01
5% common_male_baggagehandler_01
5% common_male_pilot
5% common_military_male01
5% common_patient_male01
5% common_police_male01
5% common_surgeon_male01
5% common_TSAAgent_male01
5% common_worker_male01

Left 4 Dead 2 Populations

L4D2 used its own L4D2 Common Infected on all L4D1 maps until The "Last Stand" update added all L4D1 Common Infected, along with new Uncommon Infected models and populations to the L4D1 maps.
This caused all L4D1 populations, such as "Hospital" to have two variants. One variant using L4D2 CI and one using L4D1 CI. This section lists all populations, including the old L4D1 versions using only L4D2 CI. The new "L4D1 CI" populations are listed separately below.
The populations are listed by map specific populations, but any campaign can make use of any other populations as filler.

Default / Shared

Default

30% common_male_tshirt_cargos
20% common_male_tankTop_jeans
15% common_male_dressShirt_jeans
15% common_female_tankTop_jeans
20% common_female_tshirt_skirt

Defaultcemetery

55% common_male_tankTop_jeans
45% common_female_tankTop_jeans

Defaulturban

30% common_male_tshirt_cargos
20% common_male_tankTop_jeans
15% common_male_dressShirt_jeans
15% common_female_tankTop_jeans
20% common_female_tshirt_skirt

Defaultrural

30% common_male_tshirt_cargos
30% common_male_tankTop_overalls
30% common_female_tankTop_jeans
10% common_female_tshirt_skirt

Police

30% common_male_tshirt_cargos
20% common_male_tankTop_jeans
15% common_male_dressShirt_jeans
10% common_female_tankTop_jeans
15% common_female_tshirt_skirt
10% common_male_riot

Maintenance

35% common_male_tshirt_cargos
35% common_male_tankTop_jeans
25% common_female_tankTop_jeans
5% common_male_roadcrew

Dead Center

C1streets

20% common_female_tshirt_skirt
20% common_female_tankTop_jeans
10% common_male_dressShirt_jeans
25% common_male_tanktop_jeans
20% common_male_tshirt_cargos
5% common_male_ceda

The Passing

Riverbank

35% common_female_tshirt_skirt
45% common_male_dressShirt_jeans
20% common_male_fallen_survivor

Riverbank_police

5% common_male_riot
40% common_female_tshirt_skirt
55% common_male_tankTop_jeans

Riverbank_wedding

40% common_male_formal
50% common_female_formal
10% common_male_dressShirt_jeans

Redlight

32% common_female_tankTop_jeans
24% common_male_tankTop_jeans
24% common_male_biker
20% common_male_fallen_survivor

Redlight_bikers

100% common_male_biker

Port

45% common_female_tshirt_skirt
45% common_male_tankTop_jeans
10% common_male_dressShirt_jeans

Dark Carnival

Whisperingoaks

20% common_male_tshirt_cargos
45% common_female_tankTop_jeans
8% common_male_polo_jeans
25% common_male_tanktop_jeans
2% common_male_clown

Swamp Fever

Defaultswamp

30% common_male_tshirt_cargos
30% common_male_tankTop_overalls
30% common_female_tankTop_jeans
10% common_female_tshirt_skirt

Deepswamp

25% common_male_tshirt_cargos_swamp
40% common_male_tankTop_overalls_swamp
25% common_female_tshirt_skirt_swamp
10% common_male_mud

Deepswamp_parachutist

20% common_male_tshirt_cargos_swamp
30% common_male_tankTop_overalls_swamp
20% common_female_tshirt_skirt_swamp
10% common_male_mud
20% common_male_parachutist

Gatorpark

40% common_female_tshirt_skirt
30% common_male_tankTop_jeans
30% common_male_tshirt_cargos

Hard Rain

Defaultmilltown

69% common_male_tankTop_jeans
30% common_female_tankTop_jeans
1% common_male_roadcrew

Defaultmilltown_mob

70% common_male_tankTop_jeans
20% common_female_tankTop_jeans
10% common_male_roadcrew

Defaultsugarmill

89% common_male_tankTop_overalls
8% common_female_tankTop_jeans
3% common_male_roadcrew

Defaultsugarmill_mob

80% common_male_tankTop_overalls
20% common_male_roadcrew

Defaultmilltown_rain

69% common_male_tankTop_jeans_rain
30% common_female_tankTop_jeans_rain
1% common_male_roadcrew_rain

Defaultmilltown_rain_mob

70% common_male_tankTop_jeans_rain
20% common_female_tankTop_jeans_rain
7% common_male_roadcrew_rain
3% common_male_mud

Defaultsugarmill_rain

89% common_male_tankTop_overalls_rain
8% common_female_tankTop_jeans_rain
3% common_male_roadcrew_rain

Defaultsugarmill_rain_mob

80% common_male_tankTop_overalls_rain
15% common_male_roadcrew_rain
5% common_male_mud

The Parish

Crescentcity

30% common_male_tshirt_cargos
20% common_male_tankTop_jeans
13% common_male_dressShirt_jeans
15% common_female_tankTop_jeans
20% common_female_tshirt_skirt
2% common_male_riot

Busstation

30% common_male_tshirt_cargos
20% common_male_tankTop_jeans
10% common_male_dressShirt_jeans
15% common_female_tankTop_jeans
20% common_female_tshirt_skirt
5% common_male_riot

Frenchquarter

40% common_female_tshirt_skirt
58% common_male_tankTop_jeans
2% common_male_riot

Ceda

5% common_male_riot
40% common_female_tshirt_skirt
55% common_male_tankTop_jeans

The Sacrifice

Uses L4D2 CI

River

35% common_male_tshirt_cargos
35% common_male_tankTop_jeans
30% common_female_tankTop_jeans

River_docks_trap

100% tank

Riverintro

15% common_male_tankTop_jeans
10% common_female_tankTop_jeans
75% common_male_ceda

Riverarena

20% common_male_tshirt_cargos
20% common_male_tankTop_jeans
10% common_female_tankTop_jeans
50% common_male_ceda

Riveratrium

30% common_male_dressShirt_jeans
20% common_male_tshirt_cargos
15% common_male_tankTop_jeans
20% common_female_tankTop_jeans
15% common_male_ceda

Riverfreighter

30% common_male_tshirt_cargos
30% common_male_tankTop_jeans
20% common_female_tankTop_jeans
20% common_male_roadcrew

Riverport

20% common_female_tshirt_skirt
20% common_female_tankTop_jeans
10% common_male_dressShirt_jeans
20% common_male_tanktop_jeans
20% common_male_tshirt_cargos
10% common_male_ceda

No Mercy

Uses L4D2 CI

Hospitalgrounds

30% common_male_tshirt_cargos
20% common_male_tankTop_jeans
15% common_female_tankTop_jeans
10% common_female_tshirt_skirt
25% common_male_ceda

Hospital

30% common_male_tshirt_cargos
20% common_male_tankTop_jeans
15% common_male_dressShirt_jeans
10% common_female_tankTop_jeans
15% common_female_tshirt_skirt
35% common_patient_male01

Hospitalconstruction

25% common_male_tshirt_cargos
25% common_male_tankTop_jeans
25% common_female_tankTop_jeans
25% common_male_roadcrew

Dead Air

Uses L4D2 CI

Airport

30% common_male_tshirt_cargos
20% common_male_tankTop_jeans
15% common_male_dressShirt_jeans
10% common_female_tankTop_jeans
15% common_female_tshirt_skirt
10% common_male_roadcrew

Airportfinale

Note: Identical to "Airport"

Special populations

These are special populations that exist in L4D2, but should not actually be used.

Zoo

5% common_male_tshirt_cargos
5% common_male_tankTop_jeans
5% common_male_dressShirt_jeans
5% common_female_tankTop_jeans
5% common_female_tshirt_skirt
5% common_male_ceda
5% common_male_mud
5% common_male_roadcrew
5% common_female_tshirt_skirt_swamp
5% common_male_tshirt_cargos_swamp
5% common_male_tankTop_jeans_swamp
5% common_male_tankTop_jeans_rain
5% common_female_tankTop_jeans_rain
5% common_male_roadcrew_rain
5% common_male_tankTop_overalls
5% common_male_tankTop_overalls_rain
3% common_male_jimmy
3% common_male_formal
2% common_female_formal
2% common_male_biker

Uncommons

13% common_male_ceda
13% common_male_clown
13% common_male_mud
13% common_male_roadcrew
12% common_male_riot
12% common_male_fallen_survivor
12% common_male_jimmy

Uncommons_l4d1

20% common_male_ceda_l4d1
20% common_male_mud_l4d1
20% common_male_roadcrew_l4d1
20% common_male_riot_l4d1
20% common_male_fallen_survivor_l4d1

Hospital_test

100% common_patient_male01

Male_ceda

100% common_male_ceda

Male_clown

100% common_male_clown

Male_mud

100% common_male_mud

Male_roadcrew

100% common_male_roadcrew

Male_roadcrew_rain

100% common_male_roadcrew_rain

Male_riot

100% common_male_riot

Male_fallen_survivor

100% common_male_fallen_survivor

Male_jimmy

100% common_male_jimmy

Male_ceda_l4d1

100% common_male_ceda_l4d1

Male_mud_l4d1

100% common_male_mud_l4d1

Male_roadcrew_l4d1

100% common_male_roadcrew_l4d1

Male_riot_l4d1

100% common_male_riot_l4d1

Male_fallen_survivor_l4d1

100% common_male_fallen_survivor_l4d1

Smoker

100% smoker

Hunter

100% hunter

Boomer

100% boomer

Tank

100% tank

Witch

100% witch

Witch_bride

100% witch_bride

Jockey

100% jockey

Charger

100% charger

Spitter

100% spitter

New_special

33% jockey
33% charger
34% spitter

L4D1 Populations in L4D2

These are all updated L4D1 populations using L4D1 CI.

Default / Shared

Default_l4d1

15% common_male01
15% common_male02
15% common_female01
15% common_police_male01
10% common_military_male01
10% common_worker_male01
10% common_male_suit
10% common_female01_suit

Defaultlots_l4d1

14% common_male01
14% common_male02
14% common_female01
13% common_police_male01
10% common_military_male01
10% common_worker_male01
10% common_male_suit
10% common_female01_suit
5% common_male_fallen_survivor_l4d1

Defaulturban_l4d1

15% common_male01
15% common_male02
15% common_female01
12% common_police_male01
10% common_military_male01
10% common_worker_male01
13% common_male_suit
10% common_female01_suit

Police_l4d1

10% common_male01
10% common_male02
20% common_female01
10% common_military_male01
50% common_police_male01

Riotpolice_l4d1

10% common_male01
10% common_male02
20% common_female01
10% common_military_male01
40% common_police_male01
10% common_male_riot_l4d1

Constructionzone_l4d1

20% common_male01
10% common_male02
20% common_female01
10% common_police_male01
10% common_military_male01
20% common_worker_male01
10% common_male_roadcrew_l4d1

Military_l4d1

20% common_male01
10% common_male_suit
20% common_female01
10% common_female01_suit
20% common_military_male01
17% common_police_male01
3% common_male_riot_l4d1

Maintenance_l4d1

13% common_male01
12% common_male02
20% common_female01
20% common_military_male01
35% common_worker_male01

Maintenancesewer_l4d1

13% common_male01
12% common_male02
20% common_female01
20% common_military_male01
25% common_worker_male01
10% common_male_mud_l4d1

Maintenancestreet_l4d1

13% common_male01
12% common_male02
20% common_female01
20% common_military_male01
30% common_worker_male01
5% common_male_fallen_survivor_l4d1

Defaultrural_l4d1

50% common_male_rural01
20% common_female_rural01
10% common_police_male01
10% common_military_male01
10% common_worker_male01

Ruralsewer_l4d1

35% common_male_rural01
20% common_female_rural01
10% common_police_male01
10% common_military_male01
10% common_worker_male01
15% common_male_mud_l4d1

Ruralstreet_l4d1

45% common_male_rural01
20% common_female_rural01
10% common_police_male01
10% common_military_male01
10% common_worker_male01
5% common_male_fallen_survivor_l4d1

The Sacrifice

River_l4d1

50% common_male_rural01
20% common_female_rural01
10% common_military_male01
20% common_worker_male01

River_docks_trap

100% tank

Note: Same as the previous listing of River_docks_trap, as nothing had to be changed. Listing here just for completeness sake.

Riverintro_l4d1

100% common_military_male01

Riverarena_l4d1

10% common_male_rural01
5% common_female_rural01
75% common_military_male01
10% common_worker_male01

Riveratrium_l4d1

10% common_male01
10% common_male02
15% common_female01
10% common_police_male01
5% common_worker_male01
25% common_male_suit
25% common_female01_suit

Riverfreighter_l4d1

20% common_male_rural01
20% common_female_rural01
10% common_military_male01
50% common_worker_male01

Riverport_l4d1

35% common_worker_male01
10% common_female_rural01
18% common_male01
17% common_male02
20% common_male_rural01

Dead Air

Airport_l4d1

15% common_female01
10% common_male_suit
10% common_female01_suit
15% common_worker_male01
10% common_male_baggagehandler_01
5% common_male_baggagehandler_02
10% common_female_baggagehandler_01
15% common_tsaagent_male01
10% common_male_pilot

Airportfinale_l4d1

10% common_female01
10% common_male_suit
10% common_female01_suit
10% common_worker_male01
12% common_male_baggagehandler_01
5% common_male_baggagehandler_02
13% common_female_baggagehandler_01
15% common_tsaagent_male01
15% common_male_pilot

No Mercy

Hospitalgrounds_l4d1

10% common_male01
10% common_male02
10% common_female01
10% common_police_male01
10% common_military_male01
10% common_worker_male01
10% common_male_suit
10% common_female01_suit
20% common_male_ceda_l4d1

Hospital_l4d1

10% common_male01
10% common_male02
30% common_patient_male01
10% common_worker_male01
15% common_female_nurse01
15% common_surgeon_male01
10% common_male_ceda_l4d1

Hospitalconstruction_l4d1

20% common_patient_male01
10% common_worker_male01
20% common_female_nurse01
10% common_surgeon_male01
9% common_male01
10% common_male02
15% common_male_roadcrew_l4d1
6% common_male_ceda_l4d1

Hospitalrooftop_l4d1

13% common_male01
12% common_male02
30% common_patient_male01
15% common_worker_male01
15% common_female_nurse01
15% common_surgeon_male01

The Last Stand

Junkyardrural_l4d1

18% common_male01
18% common_male02
18% common_female01
10% common_worker_male01
18% common_male_rural01
18% common_female_rural01

Junkyard_l4d1

15% common_male01
10% common_male02
15% common_female01
20% common_worker_male01
10% common_male_rural01
10% common_female_rural01
20% common_male_roadcrew_l4d1

Junkyardroad_l4d1

12% common_male01
12% common_male02
12% common_female01
12% common_worker_male01
12% common_male_rural01
12% common_female_rural01
14% common_police_male01
14% common_military_male01

Estuary_l4d1

15% common_male01
15% common_male02
15% common_female01
5% common_worker_male01
15% common_male_rural01
15% common_female_rural01
20% common_male_mud_l4d1

Lighthouserural_l4d1

18% common_male01
18% common_male02
18% common_female01
10% common_worker_male01
18% common_male_rural01
18% common_female_rural01

Lighthouse_l4d1

15% common_male01
15% common_male02
15% common_female01
15% common_worker_male01
15% common_male_rural01
15% common_female_rural01
10% common_male_fallen_survivor_l4d1

List of Population-Supported Infected Types

Here are all names you could use in a population without encountering unwanted bugs.

Left 4 Dead

A list of all L4D1 CI.
can be used in L4D and L4D2. (Click to enlarge)

Common Infected

These infected are available in L4D1 and L4D2. Three of these are only available in L4D2.

Female

common_female01
common_female_baggagehandler_01 (only in )
common_female_nurse01
common_female_rural01
common_female01_suit (only in )

Male

common_male01
common_male02 (only in )
common_male_baggagehandler_01
common_male_pilot
common_male_rural01
common_male_suit
common_military_male01
common_patient_male01_l4d2
common_police_male01
common_surgeon_male01
common_tsaagent_male01
common_worker_male01

Special Infected

boomer
hunter
smoker

Warning: Attempting to use "witch" or "tank" in a population will result in a common infected with the witch or tank model and animations.

Left 4 Dead 2

A list of all L4D2 CI.
Can only be used in L4D2. (Click to enlarge)

Common Infected

These infected are only available in L4D2.

Female

common_female_formal
common_female_tanktop_jeans
common_female_tanktop_jeans_rain
common_female_tshirt_skirt
common_female_tshirt_skirt_swamp

Male

common_male_biker
common_male_dressshirt_jeans
common_male_formal
common_male_polo_jeans
common_male_tanktop_jeans
common_male_tanktop_jeans_rain
common_male_tanktop_jeans_swamp
common_male_tanktop_overalls
common_male_tanktop_overalls_rain
common_male_tanktop_overalls_swamp
common_male_tshirt_cargos
common_male_tshirt_cargos_swamp

Uncommon Infected

L4D2

common_male_ceda
common_male_clown
common_male_fallen_survivor
common_male_jimmy
common_male_mud
common_male_riot
common_male_roadcrew
common_male_roadcrew_rain
common_male_parachutist

Note: Parachutist is a fallen survivor that looks like the dead parachutist hanging in Swamp Fever.

L4D1 Counterparts

common_male_ceda_l4d1
common_male_fallen_survivor_l4d1
common_male_mud_l4d1
common_male_riot_l4d1
common_male_roadcrew_l4d1
common_male_baggagehandler_02

Note: Baggagehandler_02 is a baggagehandler from the airport, but with ear protection. They're essentially the same as roadcrew.

Note: The L4D1 fallen survivor has the helicopter pilot model as available bodygroup.

Bug: Common_male_riot_l4d1 is unfinished and broken.

This or this mod will fix Common_male_riot_l4d1.

Special Infected

boomer
charger
hunter
jockey
smoker
spitter
tank
witch
witch_bride

Warning: Use "witch_bride" in a population will result in game crash due to no precached bride witch model. To avoid it you either need to spawn one bride witch model using prop_dynamic entity at some unreachable part of the map plus giving the entity a name, seconds later have the bride witch spawned using info_zombie_spawn entity with witch_bride population and make the logic_auto remove the entity. Another way is to add the following lines to your "reslists\mapname.lst if you think about using Content Streaming, only works for official games. Also removing the need of placing a prop_dynamic entity with the Witch Bride model.

"left4dead2_dlc1\models\infected\witch_bride.ani"
"left4dead2_dlc1\models\infected\witch_bride.dx90.vtx"
"left4dead2_dlc1\models\infected\witch_bride.mdl"
"left4dead2_dlc1\models\infected\witch_bride.phy"
"left4dead2_dlc1\models\infected\witch_bride.vvd"
"left4dead2_dlc1\materials\models\infected\witch\witch_bride_dress.vmt"
"left4dead2_dlc1\materials\models\infected\witch\witch_bride_dress.vtf"
"left4dead2_dlc1\materials\models\infected\witch\witch_bride_veil.vmt" 
"left4dead2_dlc1\materials\models\infected\witch\witch_bride_veil.vtf"

Creating a User-Defined Population

Population file changes will only affect the maps listed in all Mission Files contained the same addon VPK.
Example: Including the "Campaign10" and "Campaign11" mission files to the VPK file to only have "Death Toll" and "Dead Air" use the modified population.

Note: For L4D2, modify the population.txt found in "left 4 dead 2\update\pak01_dir.vpk". It contains the newest populations for L4D1 maps, which would be missing otherwise.

For new population groups, open population.txt, scroll to the very bottom and add the following after the last population entry, but before the final closing curly bracket }.

	custom_population_1
	{
		common_male_tankTop_jeans	55
		common_male_riot 45
	}

Use as many model names as you want, but make sure the numbers add up to exactly 100.
Place the modified population.txt into the "Scripts" subfolder of whatever folder will later become your addon VPK.

To enable custom populations to be placed into the nav mesh, temporarily pack the custom population file into an addon VPK, because the nav mesh nav_use_place command will only allow using the populations from the currently loaded population file.

Left 4 Dead Infected Populations

Contents

The basics

How To Use Them In a Map

List of Useful Commands

Left 4 Dead Populations

Urban

Rural

Special

Default and Others

Left 4 Dead 2 Populations

Default / Shared

Dead Center

The Passing

Dark Carnival

Swamp Fever

Hard Rain

The Parish

The Sacrifice

No Mercy

Dead Air

Special populations

L4D1 Populations in L4D2

Default / Shared

The Sacrifice

Dead Air

No Mercy

The Last Stand

List of Population-Supported Infected Types

Left 4 Dead

Common Infected

Special Infected

Left 4 Dead 2

Common Infected

Uncommon Infected

Special Infected

Creating a User-Defined Population

See also

Navigation menu

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