Halo Alpha
Halo Alpha

The M12G1 Light Anti-Armor Vehicle (M12G1 LAAV), commonly known as the Gauss Warthog, is a variant of the UNSC M12 Force Application Vehicle that features a mounted M68 ALIM Gauss Cannon.[2] It is designed to quickly defeat lightly-armored vehicles such as Type-25 RAV Choppers and Type-32 RAV Ghosts. The M68 Gauss Cannon fires 25mm hypersonic speed projectiles by asynchronous magnetic acceleration in the base of the cannon and takes about a half a second to recharge between cannon shots.



  • The Gauss cannon is devastating to vehicles.
  • The Gauss cannon can kill Spartans and Elites in one shot.
  • The medium rate-of-fire is fast enough to obtain multikills.


  • The Gauss Warthog's armor is itself vulnerable to anti-vehicle weaponry.

Changes from Halo 2 to Halo 3 and Halo: Reach

  • Rate of fire of the cannon is decreased.

Changes from Halo 3 and Halo: Reach to Halo 4

  • Rate of fire of the cannon is decreased even further.

Changes from Halo 4 to Halo 2: Anniversary multiplayer

  • The Gauss cannon now has a slight warm-up time of about 0.5 seconds before it is able to fire. While it warms up, a laser pointer projects from the gauss cannon onto the target.
  • Rate of fire of the Gauss cannon is drastically increased.

Changes from Halo 2: Anniversary multiplayer to Halo 5: Guardians

  • Gauss cannon no longer has a warm-up time, and fires on trigger pull.
  • Rate of fire of the cannon decreased back to how it was in Halo 4.
  • Multiple variants of the Gauss Hog have been added for use in multiplayer.


Many variants of the Gauss Warthog have been produced over the model's lifetime.

M12 Variants

Main article: M12 Force Application Vehicle
Image Name Description Changes
N/A Spirit of Fire Gauss Warthog The crew of the UNSC Spirit of Fire were known to a variant of Warthog decorated with a fire decal across the bonnet, dubbed the "Fireball Warthog."[3]
  • Performs exactly like the standard Warthog
  • Gains a flame decal

M12B Variants

Main article: M12B Force Application Vehicle
Image Name Description Changes
N/A CORP Gauss Warthog A Gauss 'Hog variant with additional armour ostensibly used by Liang Dortmund to ward off large animals, although in reality it is often used against unruly crowds.
  • +20% vehicle health[4]
N/A Tundra Gauss Warthog Sporting arctic camouflage, the Tundra Gauss 'Hog features improved armor and is often used in remote locations as an anti-armor and anti-air vehicle.
  • +40% vehicle health[4]
N/A Woodland Gauss Warthog The Woodland Gauss Warthog is exceptional at eliminating Covenant Empire boosted gravity vehicles slowed by rugged terrain.
  • +40% vehicle health[4]
N/A Urban Gauss Warthog The Urban Gauss Warthog is an up-armoured Warthog deployed as an anti-tank unit, sporting urban camouflage.
  • +40% vehicle health[4]
N/A ONI Gauss Warthog An ONI-employed Gauss Warthog with a sleek black colour scheme, whose rounds cause lingering area-of-effect damage through a classified mechanism.
  • +75% vehicle health[4]
  • Shots create a pool of area-of-effect damage upon impact


  • The Gauss Warthog first appeared in the E3 2000 Halo: Combat Evolved trailer. It was cut from the final game.
  • A label on the Halo 4 Gauss Warthog reads, "BIG SCARY LASER. DO NOT LOOK INTO BEAM WITH REMAINING EYE." (The Spartan Laser also has this sticker.)
  • In Halo 4 Title Update v1.04, the Gauss Warthog's auto aim, magnetism, and damage was reduced.[5]
  • In Halo: Reach The Gauss cannon can penetrate a large amount of builables in multiplayer, it is unknown if this is intended or is a glitch.