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Missile defense model.jpg
Production information


Game information


The HK-707, also called Missile Defense, is a static weapon cut from Half-Life 2. It can be found in the Half-Life 2 leak model files.


  • In early versions of Half-Life 2, the player was to maneuver missiles around certain areas. The HK-707 was to be a static autocannon designed to destroy these missiles with its two cannons.[1] Its model also has a gibs version, showing it was to be destroyable.[2]
  • It is unknown if it was to be automatic or operated by an NPC, although it features a handle on its back.
  • Its name is written several times on its body, while the model is simply named "Missile_Defense".
  • Its entity, "npc_missiledefense", can still be found in Hammer, but generates an error.



  1. Half-Life 2 leak source code
  2. Cite error: Invalid <ref> tag; no text was provided for refs named HL2L

External links[edit]