The Dread Maw has the Ambushers special rule, with the following exception. When it enters the battle in the Remaining Moves sub-phase, it does not move onto the board as reinforcements in the normal way. Instead, when a Dread Maw enters the battle, place a small marker anywhere on the battlefield, but not in impassable terrain or within 1" of a deployed unit.
Roll a scatter dice and an artillery dice. If you roll a Hit on the scatter dice, the marker stays in place. If you roll an arrow, move the marker the number, in inches, indicated by the artillery dice in the direction shown. If the marker is under a friendly unit, impassable terrain or a building, place it 1" away from the closest edge of the unit/terrain.
Once the final position of the marker is established, place the emerging Dread Maw such that it touches the marker, facing any direction. If the marker is under an enemy unit, you may place your Dread Maw into base contact with the enemy unit in their front arc; the Dread Maw will counts as charging this turn.
If you roll a misfire, or if for any reason some of the models in the unit cannot be placed, then the unit does not emerge this turn. You may roll for it to appear again the next turn.