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Left 4 Dead 2 eGuide
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Contents

  • Essentials
    • Display
      • The Screen
    • Game Modes
      • Introduction
      • Campaign
      • Realism
      • Versus
      • Survival
      • Scavenge
      • Single-Player
    • The A.I. Director
      • How It Works
    • Game Difficulty
      • About
    • Movement and Combat
      • On Maneuvers
      • Taking a Stance
      • Ranged Combat
      • Melee Combat
      • Health and Life
      • The Environment
    • Survival Tips and Tricks
      • Survivor General Tips
      • Infected General Tips
    • Survivors
      • The Cast
    • The Infected
      • Common Infected
      • Uncommon Infected
      • The Boomer
      • The Charger
      • The Hunter
      • The Jockey
      • The Smoker
      • The Spitter
      • The Tank
      • The Witch
    • Weapons and Equipment
      • Primary Weapons
      • Secondary Weapons
      • Mounted Weapons
      • Projectile Weapons (Belt Items)
      • Weapon Enhancements (Backpack Items)
      • Explosive Objects (Carry Only)
      • First Aid (Backpack Items)
      • Health Enhancements (Belt Items)
    • Achievements Appendix
      • Achievements
  • Walkthrough
    • Campaign Introduction
      • Looking 4 Guidance?
    • Dead Center
      • Dead Center Overview
      • Vannah Hotel Floor 8
      • Vannah Hotel Floor 7
      • Vannah Hotel Lobby
      • CEDA Quarantine & Overpass
      • Walkway To Whitaker’s
      • Maul Near Liberty Mall
      • Mall: Kappel’s and Middle Mezzanine
      • Mezzanine Mayhem
      • Security and Safe Rooms
      • Filling Up the Blue 22
    • Dark Carnival
      • Dark Carnival Overview
      • Highway & Off-Ramp
      • Whispering Oaks Ravine
      • Fairground Entrance
      • Chaos in Kiddieland
      • Murder at the Merry-Go-Round
      • Tunnel of Love
      • The Screaming Oak
      • The Barns
      • Barn Storming
      • The Concert
    • Swamp Fever
      • Swamp Fever Overview
      • Plank Country
      • Alligator Sanctuary
      • Rudimentary Pathways
      • Waterlogged Wade to Crash Site
      • Tracks Past the Shacks
      • Shanty Town Center
      • Shanty Town Bridge and Outskirts
      • Plantation Village
      • Plantation Mansion
    • Hard Rain
      • Hard Rain Overview
      • Burger Tank
      • Streets of Rage
      • Entrance and Refinery 1
      • Refinery 2, Plant Ruins, and Cane Field
      • Backtrack through Field, Plant, and Refinery
      • Retreat to the Safe Room
      • To the Safe Room on Second Street
      • Town Escape
    • The Parish
      • The Parish Overview
      • Bienville District
      • Bienville Park
      • Bedlam at the Bus Depot
      • Urban Flight
      • Sam’s Hot Impound Lot
      • The Cemetery of Saint Roche
      • One-Way Street and Jazz Club
      • Slaughter in the Quarter
      • Mayhem on the Mean Streets
      • A Bridge Too Far
      • Attack at the Military Evac
    • Scavenge Mode
      • Scavenge Mode: Basics
      • Dead Center: Atrium
      • Dark Carnival: Motel
      • Swamp Fever: Plank Country
      • Hard Rain: Milltown
      • Hard Rain: Sugar Mill
      • The Parish: Park
    • Survival Mode
      • Survival mode: Basics
      • Dead Center: Atrium
      • Dark Carnival: Motel
      • Dark Carnival: Stadium Gate
      • Dark Carnival: Concert
      • Swamp Fever: Plank Country
      • Swamp Fever: Plantation
      • Hard Rain: Burger Tank
      • Hard Rain: Sugar Mill
      • The Parish: Bus Depot
      • The Parish: Bridge
  • DLC
    • The Passing
      • New Features
      • Campaign: The Riverfront
      • Campaign: Streets & Alleyway
      • Campaign: The Park
      • Campaign: Pool Hall
      • Campaign: Pipe works
      • Campaign: River Tour
      • Campaign: The Sewers
      • Campaign: The Port
      • Scavenge Maps
      • Survival Maps
  • Video
    • The Basics: Top Ten Tips
    • Know Your Enemy (Part 1)
    • Know Your Enemy (Part 2)
    • Leave Them Dead: Weapons Detail
    • Tips Scavenge and Survival Modes
    • Campaign Tactics: Dead Center
    • Campaign Tactics: Dark Carnival
    • Campaign Tactics: Swamp Fever
    • Campaign Tactics: Hard Rain
    • Campaign Tactics: The Parish

Left 4 Dead 2 Guide › Essentials › The A.I. Director

How It Works

Have you ever thought your actions were really controlled by some invisible entity with the power to make your life considerably better or worse?

Exploration 1: The first time through here, it was quiet … too quiet.

Well the A.I. Director is just like that. Throughout every game mode, most noticeably during campaigns, the placement of every inventory item, weapon, object you can carry, certain routes you take, and enemy incursion is determined procedurally to provide you with a unique experience each time you play a game.

Exploration 2: The second time through here, it was madness! Sheer madness!

This basically means that whenever you find a Safe Room, the weapons may (or may not) be the same. It means that the item placement icons shown in this guide’s many maps are possible locations; the item may not appear every time, or be the same kind of item every time. Aside from locations where Hordes are always summoned, the number and type of enemies changes dynamically each time you play and is never the same twice!

With this in mind, the guide’s Walkthrough has noted any major A.I. Director decisions that drastically affect your tactics (such as locations where car alarms may sound, or where routes change).

The Director tailors the gameplay experience depending on how well you’re doing; for example, it sends in additional foes or Special Infected if you’re playing competently, and reduces the number of First Aid Kits.

Of course, sometimes it’s just plain nasty, and throws in a Horde when you’re least expecting it. Remember this when you’re adventuring, and when reading this guide’s Walkthrough.

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