If a unit of Screamers moves over an unengaged enemy unit in the Remaining Move phase, that enemy unit suffers an automatic Strength 5 hit per Screamer that has passed over the unit. These hits are treated as missile hits. More than one unit can be affected in this way each turn, but each unit can only be affected once by the same unit of Screamers. Units in buildings or woods are not affected by this attack. Note that the Screamers can change direction or zigzag as they move, potentially passing over several enemies.