Dissection of Official L4D2 Campaigns

Another way to help understand L4D2 level creation is to see what makes up an official one. This does not mean that developers are limited to only these elements in a L4D2 map, but these maps can be very good examples to start with.

Todo: Organize, interpret, tabulate, compact... celebrate!

Some Observations / Interpretations

• sky_camera is in every map. A L4D2 map without a 3D skybox will give graphical glitches in-game.

c1: Dead Center

Entities

Other

Dead Center

Entity Name	m1_hotel	m2_streets	m3_mall	m4_atrium			Notes	Category
ambient_generic	40	9	3	5			This is a test table.	Audio and Choreography
beam_spotlight	-	21	40	-				Lighting and Visual Effects
color_correction	4	2	2	3				Lighting and Visual Effects
env_cubemap	84	27	40	28
env_entity_maker	-	2	181	-
env_explosion	-	1	-	-
env_fade	2	-	-	6			Usually for intro and outtro.	Lighting and Visual Effects
env_fog_controller	9	2	2	2				Lighting and Visual Effects
env_microphone	-	1	-	-				Audio and Choreography
env_outtro_stats	-	-	-	1
env_physexplosion	-	1	-	1
env_player_blocker	-	-	1	4
env_physics_blocker	-	-	-	1
env_shake	24	1	-	1				Lighting and Visual Effects
env_soundscape	62	29	28	20				Audio and Choreography
env_sprite	9	18	1	-				Lighting and Visual Effects
env_sun	1	1	-	-				Lighting and Visual Effects
env_tonemap_controller	1	1	1	1				Lighting and Visual Effects
env_tonemap_controller_ghost	1	1	1	1				Lighting and Visual Effects
env_tonemap_controller_infected	1	1	1	1				Lighting and Visual Effects
filter_activator_model	-	1	-	1
filter_activator_name	-	-	1	1
filter_activator_team	3	1	2	2
filter_damage_type	-	-	1	-
filter_melee_damage	-	-	1	-
filter_multi	-	-	1	-
fog_volume	15	8	2	2				Lighting and Visual Effects
func_block_charge	-	2	-	-
func_breakable	8	12	431	127
func_brush	195	30	36	2
func_button	2	1	1	2
func_clip_vphysics	-	50	-	3
func_detail	701	747	1830	717
func_door	-	1	-	6
func_door_rotating	-	-	9	6
func_illusionary	-	1	-	-				A legacy brush entity still used today.
func_elevator	1	-	-	1
func_ladder	-	77	26	9
func_movelinear	4	-	-	-
func_nav_attribute_region	1	23	-	2
func_nav_blocker	9	17	15	5
func_orator	1	1	2	1
func_precipitation	1	-	-	-
func_playerinfected_clip	-	57	-	-
func_rotating	-	1	-	-
func_timescale	-	-	-	1
game_scavenge_progress_display	-	-	-	1
info_ambient_mob_end	-	-	2	-
info_ambient_mob_start	-	-	2	-
info_changelevel	1	2	2	-
info_director	1	1	1	1
info_elevator_floor	2	-	-	2
info_game_event_proxy	5	8	3	10
info_gamemode	-	3	-	3
info_goal_infected_chase	-	-	-	1
info_landmark	1	2	2	1
info_map_parameters	1	1	1	1
info_map_parameters_versus	1	1	1	-
info_overlay	156	348	457	226
info_particle_system	145	8	2	1
info_particle_target	166	12	-	-
info_player_start	4	-	-	-
info_projecteddecal	10	-	-	-
info_remarkable	16	16	32	-				Audio and Choreography
info_survivor_position	4	-	-	16
info_survivor_rescue	6	12	12	-
info_target	2	1	1	1
info_zombie_spawn	26	-	-	34
infodecal	14	-	8	7
keyframe_rope	31	59	-	-				Props and Detail
light	95	15	3	2				Lighting and Visual Effects
light_directional	1	1	1	1				Lighting and Visual Effects
light_environment	1	1	1	1				Lighting and Visual Effects
light_spot	69	30	42	10				Lighting and Visual Effects
logic_auto	6	22	14	7				Logic
logic_branch	-	2	-	2				Logic
logic_branch_listener	-	-	-	1				Logic
logic_case	76	13	80	6				Logic
logic_choreographed_scene	1	-	-	-				Audio and Choreography
logic_compare	-	-	1	-				Logic
logic_director_query	3	1	3	-				Logic
logic_relay	43	15	19	22				Logic
logic_script	-	1	-	-				Logic
logic_timer	10	12	77	4				Logic
math_counter	4	-	1	-				Logic
move_rope	10	20	-	-				Props and Detail
path_track	14	1	-	4			Could be decompile error of info_lighting.	Lighting and Visual Effects
player_weaponstrip	-	1	-	-
point_hurt	1	-	-	-
point_prop_use_target	-	1	-	1
point_spotlight	-	-	-	2				Lighting and Visual Effects
point_template	47	5	30	21
point_viewcontrol_multiplayer	-	-	-	5
point_viewcontrol_survivor	4	-	-	-
postprocess_controller	4	2	2	3				Lighting and Visual Effects
prop_car_alarm	-	2	-	-				Props and Detail
prop_car_glass	-	4	-	-				Props and Detail
prop_door_rotating	29	13	39	16				Props and Detail
prop_door_rotating_checkpoint	1	2	2	1				Props and Detail
prop_dynamic	72	55	19	25				Props and Detail
prop_dynamic_override	-	-	-	2				Props and Detail
prop_health_cabinet	-	1	2	-				Props and Detail
prop_physics	314	230	288	87				Props and Detail
prop_static	1748	2193	4089	2332				Props and Detail
shadow_control	1	1	1	1				Lighting and Visual Effects
sky_camera	1	1	1	1
trigger_active_weapon_detect	-	1	-	-
trigger_auto_crouch	-	-	4	-
trigger_finale	-	-	-	1
trigger_hurt	51	5	1	2
trigger_hurt_ghost	7	-	-	-
trigger_look	1	-	-	-
trigger_multiple	5	2	3	2
trigger_once	19	7	2	1
trigger_push	38	4	-	2
upgrade_spawn	-	17	-	9				Weapons
weapon_adrenaline_spawn	-	-	-	15				Weapons
weapon_ammo_spawn	1	7	2	3				Weapons
weapon_autoshotgun_spawn	-	7	-	1				Weapons
weapon_chainsaw_spawn	3	-	-	-				Weapons
weapon_defibrillator_spawn	-	-	-	1				Weapons
weapon_first_aid_kit_spawn	9	12	8	8				Weapons
weapon_hunting_rifle_spawn	-	4	-	-				Weapons
weapon_item_spawn	51	100	148	9				Weapons
weapon_melee_spawn	8	14	10	9				Weapons
weapon_molotov_spawn	-	-	-	23				Weapons
weapon_pain_pills_spawn	1	-	-	31				Weapons
weapon_pipe_bomb_spawn	-	-	-	25				Weapons
weapon_pistol_magnum_spawn	1	2	-	-				Weapons
weapon_pistol_spawn	3	5	-	-				Weapons
weapon_pumpshotgun_spawn	-	4	-	-				Weapons
weapon_rifle_ak47_spawn	-	5	-	1				Weapons
weapon_rifle_desert_spawn	-	4	-	1				Weapons
weapon_rifle_spawn	-	6	-	1				Weapons
weapon_scavenge_item_spawn	-	-	-	35				Weapons
weapon_shotgun_chrome_spawn	3	2	-	1				Weapons
weapon_shotgun_spas_spawn	-	4	-	-				Weapons
weapon_smg_silenced_spawn	1	3	-	1				Weapons
weapon_smg_spawn	-	2	-	-				Weapons
weapon_sniper_military_spawn	-	2	-	1s				Weapons
weapon_spawn	6	13	17	8				Weapons
weapon_vomitjar_spawn	-	-	-	19				Weapons