If the number of hits from an Attack, that includes at least one weapon with the Disruption Cannon Model Assigned Rule, equals or exceeds the Critical Rating (CR) of the target model, perform ONE additional roll on the Critical Hit Table, ignore any roll of 2 or 12 and any Hull Point, Crew Point or Assault Point loss associated with this extra roll. If NO weapon is listed, the Disruption Cannon MAR is applied to ALL Primary weapon systems on the model.