Entity Information
===

Environment Entities
---
env_detail_controller - Controls the fade distance of detail objects?
env_outtro_stats - Used to roll the credits and ending statistics.
env_tonemap_controller_ghost - A spectator only env_tonemap_controller?
env_tonemap_controller_infected - An infected only env_tonemap_controller.

Filter Entities
---
filter_activator_team - Updated to include the Survivor and Infected teams.

Function Entities
---
func_button - Updated to give a target object an edge glow when facing the button and within +use range.
func_detail_blocker - Detail object occluder?
func_nav_blocker - Blocks bot navigation.
func_orator - Something to do with interactable speech objects? (Point entity)
func_precipitation - Updated with a new rain and cinder effect.
func_precipitation_blocker - Blocks func_precipitation effects?
func_simpleladder - Similar to func_ladder? Three keyvalues names (normal.x, normal.y, normal.z) interfere with the .fgd.
fog_volume - Used to control postprocess fog effects? Used with an env_fog_controller.

Information Entities
---
info_changelevel - A point entity version of trigger_changelevel.
info_director - The Director entity.
info_game_event_proxy - Triggers a game event.
info_goal_infected_chase - A target for the bot infected.
info_map_parameters - Controls map item parameters.
info_survivor_position - A survivor specific starting position.
info_survivor_rescue - The location of a rescuable survivor.

Light Entities
---
light_directional - A dynamic light_environment or env_sun of sorts? Currently unsupported by VRAD.
light_spot - Updated to optionally cast dynamic shadows?

Misc. Entities
---
postprocess_controller - Controls postprocess effects.
shadow_control - Updated to control dynamic shadows from static lights?

Point Entities
---
beam_spotlight - A point_spotlight replacement?
point_deathfall_camera - A spectator camera position.
point_viewcontrol_multiplayer - A L4D specific point_viewcontrol replacement?
point_viewcontrol_survivor - A survivor only point_viewcontrol.

Prop Entities
---
prop_car_alarm - A car that is able to trigger a panic event when disturbed.
prop_car_glass - Breakable glass of a car.
prop_door_rotating_checkpoint - A safe room checkpoint door.
prop_health_cabinet - A cabinet that contains health items.
prop_minigun - A minigun.

Trigger Entities
---
trigger_auto_crouch - Automatically crouch the survivor when within the volume.
trigger_finale - Triggers the finale onslaught. (Point entity)
trigger_multiple - Updated with the OnEntireTeamStartTouch output.
trigger_once - Updated with the OnEntireTeamStartTouch output.

Weapon Spawn Entities
---
weapon_ammo_spawn - A possible spawnpoint for ammo restock.
weapon_autoshotgun_spawn - A possible spawnpoint for automatic shotguns.
weapon_first_aid_kit_spawn - A possible spawnpoint for first aid kits.
weapon_hunting_rifle_spawn - A possible spawnpoint for hunting rifles.
weapon_molotov_spawn - A possible spawnpoint for Molotov cocktails.
weapon_pain_pills_spawn - A possible spawnpoint for pain pills.
weapon_pipe_bomb_spawn - A possible spawnpoint for pipe bombs.
weapon_pistol_spawn - A possible spawnpoint for pistols.
weapon_pumpshotgun_spawn - A possible spawnpoint for pump shotguns.
weapon_rifle_spawn - A possible spawnpoint for assault rifles.
weapon_smg_spawn - A possible spawnpoint for submachineguns.