HECU Laser Tripmine

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Laser Tripmine
Production information
Type	Tripmine
Affiliation	Hazardous Environment Combat Unit Black Mesa Black Ops
Technical specifications
Maximum ammunition	5
Damage	150
Rate of fire	200 RPM (HL1) 120 RPM (HL: S) (HLDM: S)
Operation	Adheres to surface; deploys tripwire beam after a few seconds.
Range	Close
Usage
Used by	Gordon Freeman Adrian Shephard HECU Black Ops
Counterparts	Other explosives Combine Laser Tripmine S.L.A.M
Game information
Designed by	Stephen Bahl (HD GoldSrc version)
Entity name	weapon_tripmine (Usable version) monster_tripmine (Placed version)

The Hazardous Environment Combat Unit Laser Tripmine, commonly referred to as the HECU Laser Tripmine, is a proximity-fused explosive featured in Half-Life. It relies on a laser to trigger.

Overview

A deployed Tripmine.

• In Half-Life, Tripmines are first seen in "We've got Hostiles," though they are unusable since they have been deployed already. They are only obtained at the end of the Half-Life chapter Blast Pit. They can also be found with a small supply cache along with Satchel Charges and the .357 Magnum in Residue Processing.
• In Opposing Force, they can be acquired in the chapter Missing in Action in the HECU cargo truck at the vehicle repair garage.

• To place a mine, the player must get close to a surface and aim the crosshair where the mine will be placed. When the mine is placed on the surface, it will give off a chime, then activate its lasers within 3 seconds. If the placed mine is damaged, or if a suitable target interrupts the laser, it will explode, inflicting 150 damage within its area of effect. Placed mines cannot be retrieved.

• Tripmines are used as a puzzle device in the chapter Surface Tension, where Gordon has to go through an old Nuclear Missile storage facility, which has been filled to an utterly ridiculous degree with explosives of all kinds. If an explosion happens, every Tripmine, nuclear missile, gas leak, and barrel of explosive in the building will be detonated, resulting in a game over.

Tactics

• The Laser Tripmine can be used to trick any enemies that will chase the player.
• The player can place any explosive and run away to clear the tripmines. It is recommended to do this with a Satchel Charge.
• The player can also use any ranged weapons to clear out tripmines. It is recommended to shoot them from a safe distance.
• The player can also choose to avoid the tripmines by crawling under or jumping over them.
• It is also possible to jump on the mine itself in order to reach some inaccessible areas; doing so will not set it off (no longer applicable in Half-Life: Source).

Trivia

• The viewmodel features an unused arming sequence.
• The weapon appears in Counter Strike Condition Zero: Deleted Scenes in the mission Lost Cause as enemy traps.
• Placing the tripmine on moving debris or NPCs will simply cause it to drop to the ground, allowing it to be picked up again.
  • This doesn't apply in deathmatch where it can be deployed on another player. However, should said player move it will trigger.
• The Tripmines are apparently designated the M23B by the US Military, though with toxic gasses as their payload.

Gallery

HUD icon.

Day One viewmodel.

Viewmodel.

HD viewmodel.

A deployed HD Tripmine.

Deployed HD Tripmine near HECU graffiti in the Black Mesa Transit System.

List of appearances

• Half-Life: Day One (First appearance) (Unobtainable)
• Half-Life
• Half-Life: Uplink (Non-canonical appearance)
• Half-Life: Opposing Force
• Half-Life: Blue Shift (Only obtainable with cheats)
• Half-Life: Decay (Unobtainable)