This subject is related to the Black Mesa Incident era.

Displacer Cannon

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Displacer Cannon
Production information
Faction

Black Mesa

Type

Prototype teleportation device

Technical specifications
Damage

250 (instant death to human-sized enemies)

Ammo

100

Max ammo

100 cells (1 primary shot = 20 cells, 1 self-teleportation = 60 cells)

Ammo type

Depleted Uranium-235

Rate of fire
  • Primary Fire: 2.5 seconds (24 shots per minute)
  • Secondary Fire: 2 seconds (30 shots per minute)
Accuracy

Excellent

Range

Medium to long

Usage
Used by
Game information
Entity

weapon_displacer

Designer(s)

Stephen Bahl[1]

The Displacer Cannon, simply known as the Displacer, is a portable teleportation device featured in Half-Life: Opposing Force.

Overview[edit]

The Displacer is a prototype portable teleportation device created by the Black Mesa Science Team. It has the ability to transfer an object or life form from Earth to the borderworld Xen.[2] It is acquired from a scientist that falls to his death in Xen in the chapter We Are Not Alone.

It features two fire modes. The primary mode generates a large green portal that, upon a direct hit, teleports the target to an unknown destination in Xen. However, the resulting teleportation creates an area of splash damage that kills anything nearby. The secondary mode allows the player to self-teleport to a random location in Xen and also damages anything nearby during the sequence. It uses Uranium-235 as ammunition which also used by the Tau Cannon and Gluon Gun.

List of teleport destinations[edit]

Using the Displacer always sends Adrian to a small location set in the current map. That area always features one or two portals bringing him back where he came from so that he can resume his journey. These areas often feature dead Black Mesa scientists (lab coat and HEV Suit versions), supplies, and non-hostile NPCs.

  • We Are Not Alone
    1. of3a2: Set on Xen, this is the map where the Displacer is found. After witnessing Gordon Freeman teleporting to Xen, Adrian uses another portal, sending him to another Xen location featuring a Race X portal from which Sprites fly and enter back to another portal located above, and a dead Survey Team member. There he witnesses a scientist teleporting high above, falling to his death on an island with a Displacer. Upon acquiring the weapon, Adrian can use it to teleport into a segment of the Training Facility, where he witnesses Vortigaunts attacking the Holographic Instructor without any effect. As Adrian is already on Xen when using the Displacer teleportation feature, it is the only teleport location not set on Xen.
  • Crush Depth
    1. of3a4: From the Biodome Complex, Adrian can teleport himself to the same Xen location seen during the Resonance Cascade in Half-Life, and where the Decay bonus chapter Xen Attacks starts. There the Bullsquids drinking in the Healing Pool are still non-hostile. The portal teleporting back to Black Mesa is located behind Adrian after teleporting, in a cave.
    2. of3a5: Again from the Biodome Complex, it teleports to a Xen location where a scientist who came there with another Displacer is hanging from the cliff of an island. However Adrian does not teleport on solid ground, and falls to his death in the void. The end message then reads: "Status: Accidental death - Postmortem: Displacer Cannon self-teleport mishap". One of the islands features a Healing Pool.
    3. of3a6: Again from the Biodome Complex, it teleports to a Xen location where corpses of Survey Team members are found. A portal leads back to the Biodome Complex. It will sometimes lead to a Biodome Complex area featuring another portal teleporting back to another spot of the Xen area, then teleporting back again to the Biodome Complex.
  • Vicarious Reality
    1. of4a1: Again from the Biodome Complex, it teleports to a Xen cavern where a scientist, thankful to be rescued, is found. The scientist can then teleport through the portal, but he cannot be seen after following him. There can also be found a Healing Pool, several Xen Plant Lights and Xen crystals.
    2. of4a2: Again from the Biodome Complex, it teleports to a Xen area with three islands linked together vertically by a column, Xen crystals, Survey Team member corpses and two flocks of Boids.
    3. of4a3: Again from the Biodome Complex, it teleports to the same Xen area as the one visited in of3a6, only that the skybox is plain black. It is briefly seen, with no dead Survey Team members and no supplies, in the Blue Shift chapter Deliverance.
  • Pit Worm's Nest
    1. of4a4: From Waste Processing Area 3, it teleports to a large flooded Xen cavern with Xen Plant Lights, the corpse of a lab coat scientist and of a female HEV Suit scientist, possibly Gina Cross (as it uses the multiplayer model "gina.mdl"). Despite being set on Xen, the Pit Worm can still erroneously be heard from that area.
    2. of4a5: Again from Waste Processing Area 3, it teleports to the same Xen area as the one visited in of3a5.
  • Foxtrot Uniform
    1. of5a1: From Sector G's hangar areas, it teleports to the same Xen area as the one visited in of4a1, only that there is no scientist.
    2. of5a2: Again from Sector G's hangar areas, it teleports to the same Xen area as the one visited in of3a4.
    3. of5a3: Again from Sector G's hangar areas, it teleports to the same Xen area as the one visited in of4a3.
    4. of5a4: From Sector G's Hydro-Electric Dam, it teleports to the same Xen area as the one visited in of4a4, except that it now features two portals. One portal teleports back to the hangars side of the dam, the other to the Alien Research Labs side.
  • "The Package"
    1. of6a1: From the desert area located after the Hydro-Electric Dam, it teleports to the same Xen area as the one visited in of4a1. The scientist is again there, but does not teleport when walking through the portal.
    2. of6a2: From outside Sector E's larger Ordinance Storage Facility, it teleports to the same Xen area as the one visited in of4a3.
    3. of6a3: From Sector E's larger Ordinance Storage Facility, it teleports to the same Xen area as the one visited in of4a4. Both portals teleport back to the same spot, which changes depending on what spot Adrian is before teleporting.
    4. of6a4: From the underground parking lot of Sector E's larger Ordinance Storage Facility, it teleports to the same Xen area as the one visited in of3a4.
  • Worlds Collide
    1. of6a4b: From under the underground parking lot of Sector E's larger Ordinance Storage Facility, it teleports to the same Xen area as the one visited in of3a4.
    2. of6a5: From the Gene Worm area of Sector E's larger Ordinance Storage Facility, it teleports to a Xen area featuring three islands, a dead Survey Team member and his Weapon Box, and a few Xen crystals.

Trivia[edit]

  • On the view model of the Displacer, the words "BLACK MESA XV11382" are written on the thick black cable. This may be a reference to George Lucas' THX-1138, which is referenced many times throughout the Star Wars saga, and other works.
  • To prevent the player from trying to self-teleport in Xen, the alt-fire uses 60 ammo (out of the 100 ammo reserve) and it can't be refilled in Xen.

Gallery[edit]

List of appearances[edit]

References[edit]