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Combine Smart Barrier

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Combine Smart Barrier
General information
Affiliation

Combine

Type

Mechanic wall

Game information
Entity

N/A

Designer(s)

The Combine Smart Barrier,[1] also known as Combine Mobile Wall, is a moving mechanic wall, using powerful drive systems in tandem with heavy metal blocks to slowly expand outward and destroy existing structures in the way. Smart Barriers are seen surrounding the Citadel (where they make up the "City 17 Inner Wall"), certain areas of Nova Prospekt and City 17, notably on the Trainstation Plaza during the Uprising and around the Overwatch Nexus.

Contents

[edit] Overview

Standard operation is to lift and force a set of blocks outward, before allowing them to drop, and then alternating with another set. During this procedure a metallic groaning is heard, presumably from the drive mechanisms. It is unknown whether the Combine are using this method to simply destroy existing structures, or whether to gather raw materials as well. Either way, they are also used as blockades, blocking off alleyways and even entire streets as necessary. Gordon Freeman narrowly escapes being crushed by Smart Barriers shortly before getting into the Nova Prospekt Depot.

As its name suggests, the Smart Barrier seems to be self-operated and will sometimes get into movement when a being passes nearby, crushing it if he remains in the way.

[edit] Behind the scenes

  • As seen in the WC mappack and suggested by the playable Half-Life 2 Beta sound files, the City 17 Inner Wall was originally to be stationary, much higher and made out of concrete. The Manhack Arcade was at some point to be located nearby, before being replaced by Captain Vance's Headquarters, where Gordon was to go look for Vance while Alyx was to be left hurt in the Skyscraper.[2][3]
  • An early version, only existing as concept art, was made of cubes.[1]
  • An early prototype version, featured in the WC mappack as a brush, was named "Sensor Gate". It can be found in the WC mappack maps "sensor_gate_004.vmf", "combine_gallery_002.vmf" or "d1_garage_01.vmf". It is always accompanied by an early Combine Watchtower (Watchtowers are often seen near Smart Barriers, but also Barricades), often featuring a Metrocop inside. By default in open state, it shuts itself when the player approaches it, also reacting to a nearby presence with its "sensors", much like the final version.

[edit] Gallery

[edit] Pre-release

[edit] Retail

[edit] List of appearances

[edit] Notes and references

Technology, equipment, items and props
Aperture Science 1500 Megawatt Heavy Duty Super-Colliding Super Button · Advanced Knee Replacement · Borealis · Emergency Intelligence Incinerator · GLaDOS · High Energy Pellet · Material Emancipation Grill · Military Android · Security Camera · Teleportation · Unstationary Scaffold · Vital Apparatus Vent · Weighted Storage Cube · Weapons
Black Mesa Anti-Mass Spectrometer · Battery · Black Mesa Announcement System · Black Mesa rocket · Charger · Delivery Cart · HEV Suit · Holographic Instructor · Long Jump Module · Medkit · MTM 8 · Retinal Scanner · Teleportation · Weapon Box · Weapons
Combine Battery · Breencast · Charger · Citadel Core · Citadel · Barricade · Binoculars · Bunker · Camera · Cell · Confiscation Field · Door Lock · Elevator · Emitter · Interface · Dark Energy · Depot · Dr. Breen's Private Reserve · Energy Orb · Field Bridge · Force Field · Heavy Door · Light · Medkit · Memory Replacement · Monitor · Overwatch Voice · Power Generator · Ration Dispenser · Restrictor · Smart Barrier · Supply Crate · Suppression Field · Teleportation · Television · Vehicles · Watchtower · Weapons
Resistance Communication · Antlion Detector · Dog · EMP Tool · Generator Trailer · Lever Bridge · Retinal Scanner · Supply Crate · Teleportation · Television · Transponder · Vehicles · Weapons · White Forest rocket
Other Cloaking Device · Garden Gnome · Powered Combat Vest
Black Mesa (cut) Emergency Flare · Oxygen Bottles · Powerup Bottles · Security Card
Combine (cut) Binoculars · Combine Big Momma Pod · Combine Assassin Tank · Door Tower · Heel Springs · Sensor Gate · Vorti-Cell
The Combine
Leaders / key figures Advisors · 314 URB-LOC 0017 Advisor · Barn Advisor · Wallace Breen
Minor members Barney Calhoun
Humanoid units Civil Protection · Overwatch Soldier · Overwatch Sniper · Overwatch Elite · Stalker
Synth units Synth · Advisor Pod · Crab Synth · Combine Dropship · Combine Gunship · Hunter · Mortar Synth · Shield Scanner · Strider
Mechanical units City Scanner
Weapons Autogun · Headcrab Shell · Hopper Mine · Hunter-Chopper Bomb · Manhack · MK3A2 Grenade · MP7 · Overwatch Sniper Rifle · Overwatch Standard Issue Pulse Rifle · Rollermine · Sentry Turret · SPAS-12 · Stun Baton · Suppression Device · USP Match
Vehicles Advisor Platform · Armored Personnel Carrier · Hunter-Chopper · Razor Train
Technology Battery · Breencast · Charger · Citadel Core · Citadel · Barricade · Binoculars · Bunker · Camera · Cell · Confiscation Field · Door Lock · Elevator · Emitter · Interface · Dark Energy · Depot · Dr. Breen's Private Reserve · Energy Orb · Field Bridge · Force Field · Heavy Door · Light · Medkit · Memory Replacement · Monitor · Overwatch Voice · Power Generator · Ration Dispenser · Restrictor · Smart Barrier · Supply Crate · Suppression Field · Teleportation · Television · Vehicles · Watchtower
Locations Citadel · Citadel Core · City 14 · City 17 · City 17 Trainstation · Combine Overworld · Depot · Nova Prospekt · Technical Trainstation
Other Anticitizen · Citizen · Overwatch
Leaders / key figures (cut) The Consul · Vance
Minor members (cut) Animal · Mambridge · Peters
Humanoid units (cut) Alien Assassin · Alien Combine Soldier · Combine Assassin · Conscripts · Cremator
Synth units (cut) Combine Guard · Combine Super Soldier · Combine Synth Elite Soldier · Sacktick · Unidentified Synth · Wasteland Scanner
Weapons (cut) Combine Guard Gun · Combine Launcher · Desert Launcher · FIM-92 Stinger · GR9 · HK-707 · Hopwire Grenade · Immolator · Incendiary Rifle · Laser Tripmine · MP5K · MP7 · Sniper Rifle · XM29 OICW
Vehicles (cut) AirEx Truck · C-130 · Combine SWAT Truck · M2A3 Bradley · Merkava · School Bus · V-22 Osprey
Technology (cut) Binoculars · Combine Big Momma Pod · Combine Assassin Tank · Door Tower · Heel Springs · Sensor Gate · Vorti-Cell
Locations (cut) Air Exchange · City 40 · City 49 · Combine Factories · Manhack Arcade · Skyscraper · Vance Headquarters · Weather Control