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
ambient_generic	40	9	3	-			This is a test table.
beam_spotlight	-	21	40	-
color_correction	4	2	2	-
env_cubemap	84	27	40	-
env_entity_maker	-	2	181	-
env_explosion	-	1	-	-
env_fade	2	-	-	-
env_fog_controller	9	2	2	-
env_microphone	-	1	-	-
env_physexplosion	-	1	-	-
env_shake	24	1	-	-
env_soundscape	62	29	28	-
env_sprite	9	18	1	-
env_sun	1	1	-	-
env_tonemap_controller	1	1	1	-
env_tonemap_controller_ghost	1	1	1	-
env_tonemap_controller_infected	1	1	1	-
filter_activator_model	-	1	-	-
filter_activator_name	-	-	1	-
filter_activator_team	3	1	2	-
filter_damage_type	-	-	1	-
filter_melee_damage	-	-	1	-
filter_multi	-	-	1	-
fog_volume	15	8	2	-
func_block_charge	-	2	-	-
func_breakable	8	12	431	-
func_brush	195	30	36	-
func_button	2	1	1	-
func_clip_vphysics	-	50	-	-
func_detail	701	747	1830	-
func_door	-	1	-	-
func_door_rotating	-	-	9	-
func_illusionary	-	1	-	-			A legacy brush entity still used today.
func_elevator	1	-	-	-
func_ladder	-	77	-	-
func_movelinear	4	-	-	-
func_nav_attribute_region	1	23	-	-
func_nav_blocker	9	17	-	-
func_orator	1	1	-	-
func_precipitation	1	-	-	-
func_playerinfected_clip	-	57	-	-
func_rotating	-	1	-	-
info_changelevel	1	2	-	-
info_director	1	1	-	-
info_elevator_floor	2	-	-	-
info_game_event_proxy	5	8	-	-
info_gamemode	-	3	-	-
info_landmark	1	2	-	-
info_map_parameters	1	1	-	-
info_map_parameters_versus	1	1	-	-
info_overlay	156	348	-	-
info_particle_system	145	8	-	-
info_particle_target	166	12	-	-
info_player_start	4	-	-	-
info_projecteddecal	10	-	-	-
info_remarkable	16	16	-	-
info_survivor_position	4	-	-	-
info_survivor_rescue	6	12	-	-
info_target	2	1	-	-
info_zombie_spawn	26	-	-	-
infodecal	14	-	-	-
keyframe_rope	31	59	-	-
light	95	15	-	-
light_directional	1	1	-	-
light_environment	1	1	-	-
light_spot	69	30	-	-
logic_auto	6	22	-	-
logic_branch	-	2	-	-
logic_case	76	13	-	-
logic_choreographed_scene	1	-	-	-
logic_director_query	3	1	-	-
logic_relay	43	15	-	-
logic_script	-	1	-	-
logic_timer	10	12	-	-
math_counter	4	-	-	-
move_rope	10	20	-	-
path_track	14	1	-	-			Could be decompile error of info_lighting.
player_weaponstrip	-	1	-	-
point_hurt	1	-	-	-
point_prop_use_target	-	1	-	-
point_template	47	5	-	-
point_viewcontrol_survivor	4	-	-	-
postprocess_controller	4	2	-	-
prop_car_alarm	-	2	-	-
prop_car_glass	-	4	-	-
prop_door_rotating	29	13	-	-
prop_door_rotating_checkpoint	1	2	-	-
prop_dynamic	72	55	-	-
prop_health_cabinet	-	1	-	-
prop_physics	314	230	-	-
prop_static	1748	2193	-	-
shadow_control	1	1	-	-
sky_camera	1	1	-	-
trigger_active_weapon_detect	-	1	-	-
trigger_hurt	51	5	-	-
trigger_hurt_ghost	7	-	-	-
trigger_look	1	-	-	-
trigger_multiple	5	2	-	-
trigger_once	19	7	-	-
trigger_push	38	4	-	-
upgrade_spawn	-	17	-	-
weapon_ammo_spawn	1	7	-	-
weapon_autoshotgun_spawn	-	7	-	-
weapon_chainsaw_spawn	3	-	-	-
weapon_first_aid_kit_spawn	9	12	-	-
weapon_hunting_rifle_spawn	-	4	-	-
weapon_item_spawn	51	100	-	-
weapon_melee_spawn	8	14	-	-
weapon_pain_pills_spawn	1	-	-	-
weapon_pistol_magnum_spawn	1	2	-	-
weapon_pistol_spawn	3	5	-	-
weapon_pumpshotgun_spawn	-	4	-	-
weapon_rifle_ak47_spawn	-	5	-	-
weapon_rifle_desert_spawn	-	4	-	-
weapon_rifle_spawn	-	6	-	-
weapon_shotgun_chrome_spawn	3	2	-	-
weapon_shotgun_spas_spawn	-	4	-	-
weapon_smg_silenced_spawn	1	3	-	-
weapon_smg_spawn	-	2	-	-
weapon_sniper_military_spawn	-	2	-	-
weapon_spawn	6	13	-	-