Technology & Combat Characteristics
A prototype mobile suit developed by the OMNI Enforcer, as indicated by its model number, the GAT-X399/Q Wild Dagger adopted the transformable X300 series frame. Its production cost was extremely low as it reused many parts from the GAT-02L2 Dagger L. The "Q" in its model number stood for "Quadruped", and it was designed to counter the quadrupedal mobile suits used by ZAFT. Originally a purely quadrupedal design similar to its ZAFT counterparts, the Wild Dagger was redesigned as a transformable mobile suit following the OMNI Enforcer's capture and analysis of the ZGMF-X88S Gaia Gundam, which was capable of transforming between a mobile suit and a quadruped form. As such, the Wild Dagger heavily resembled the Gaia Gundam in both of its forms.
As the OMNI Enforcer gradually transformed into an internal suppression force during the Second Alliance-PLANT War, the Wild Dagger was specialized for (COIN). During COIN operations, the psychological effect the Wild Dagger had on the enemy was immense, even surpassing its mobility. Its head in quadruped form was armed with a 46mm Gatling gun. Its back turret adopted a universal standard and could be fitted with numerous optional weapons, including a ballistic cannon, a beam cannon, or a missile launcher. Its beam sabers, mounted on two tilt-pivot on the waist, could be deployed to the side of the unit and cut targets while moving in quadruped form. It was also equipped with a tail-mounted 175mm multipurpose smoothbore cannon. Finally, it retained the hardpoints of the original Dagger L, which could mount shields and other equipment.
History
On uneven terrain, the OMNI Enforcer often struggled against ZAFT's quadrupedal mobile suits, the TMF/A-802 BuCUE and TMF/A-803 LaGOWE, due to their superior mobility. The GAT-X399/Q Wild Dagger was developed to counter them, but due to the exorbitant development cost and the end of the First Alliance-PLANT War, the project was shelved. However, in C.E. 73, development of the Wild Dagger resumed following the capture and analysis of the Gaia Gundam, shortly before the outbreak of the Second Alliance-PLANT War. Having analyzed the Gaia Gundam, the Wild Dagger was redesigned from a quadruped mobile suit into a transformable mobile suit similar to the Gaia. Despite being a prototype, the Wild Dagger received a large order of 72 units, of which 70 units were actually manufactured. It was mainly used for COIN operations against anti-Alliance forces, a job it excelled at due to its psychological impact on enemies.
At this point, 2012th team leader Stephen Wiltshire signaled for McFadden to attack. McFadden's Wild Dagger quickly destroyed a ZGMF-1000/A1 Gunner ZAKU Warrior and a ZGM-1000/R4 Command ZAKU CCI before the latter could relay the information back to ZAFT forces in orbit. As a result, the Nibelung was able to devastate ZAFT descent forces when they attempted to launch an assault from orbit. However, the 2012th was wiped out by Shinn Asuka in the ZGMF-X42S Destiny Gundam in the subsequent battle.