Left 4 Dead Infected Populations
Template:Otherlang2 Infected populations control which kinds of common infected can be spawned in the different sections of your map.
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.
- 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". - You can paint areas individually using "
nav_place_set". - 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. - 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 "
 - 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
 - 
- 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
 
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_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
 
 
- 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
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
 
witch" or "tank" in a population will result in a common infected with the witch or tank model and animations.Left 4 Dead 2
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
 
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
 
This or this mod will fix Common_male_riot_l4d1.
Special Infected
- boomer
 - charger
 - hunter
 - jockey
 - smoker
 - spitter
 - tank
 - witch
 - witch_bride
 
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.
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.