Shock (X) "Weapons with the Shock (X) Special Rule have a chance of inflicting Statuses on Vehicles even if it does not penetrate their armour."
When making a Hit Test for a Weapon with this Special Rule against a Target Unit that includes any Models with the Vehicle Type or Walker Type, the result of the Hit Test before any modifiers are applied must be checked. If any Hit Test for a Weapon with the Shock (X) Special Rule results in a '5' or '6' before any modifiers are applied, then all Models with the Vehicle Type or Walker Type in the Target Unit gain a Status at the end of Step 11 of the Shooting Attack process or Step 10 of the Initiative Step process. The Status gained is indicated by the value of X attached to that variant of the Shock (X) Special Rule. If the Model already has the stated Status or the attack would apply the Status multiple times there is no additional effect and this Special Rule never causes a Model to lose Wounds or Hull Points. Hits inflicted by a Weapon with this Special Rule must still have Wound Tests or Armour Penetration Tests made for them, and are not discarded if they trigger this Special Rule.