Stunning!
From Halopedia, the Halo wiki
Stunning! is an achievement in Halo 3: ODST awarded for disabling any vehicle with an over-charged plasma pistol shot and killing the driver of the vehicle. It is worth 5 Gamerpoints.[1]
Sources
From Halopedia, the Halo wiki
Stunning! is an achievement in Halo 3: ODST awarded for disabling any vehicle with an over-charged plasma pistol shot and killing the driver of the vehicle. It is worth 5 Gamerpoints.[1]