Some creatures rush forward at one moment, only to falter clumsily in the next.
Source: Warhammer: The Old World Online Rules Index
Random MovementURL Copied!
Models with this special rule do not have a normal Movement characteristic. Instead, a dice roll is given (2D6, for example). When a model with this special rule moves, roll the dice to determine its maximum movement.
Models with this special rule move during the Compulsory Moves sub-phase. They cannot march or declare a charge. They can wheel to change direction, but cannot perform any other manoeuvres. If the model is able to make contact with an enemy unit during the Compulsory Moves sub-phase or whilst pursuing, it may do so and counts as having charged. The model aligns against the enemy unit and stops moving. A unit charged in this way must Hold.
If every model in a unit has this special rule, roll once for the entire unit. If two or more models in a unit have different Random Movement characteristics, roll for each and use the lowest result for the entire unit.