Mobile Defence Position

(Rule)
Description: If you brought this Fortification as part of your army, you may move it up to 6" in the Movement Phase. It cannot move if there are any enemy models on it, and may only carry friendly models if all members of their unit are on it. Models carried with it are treated as being stationary for the purposes of firing weapons, but cannot move themselves in the same phase. This Fortification can only move over open ground, and cannot move within 1" of enemy models.