Fire Overwatch

WHEN: Your opponent’s Movement or Charge phase, just after an enemy unit is set up or when an enemy unit starts or ends a Normal, Advance, Fall Back or Charge move.
TARGET: One unit from your army that is within 24" of that enemy unit and that would be eligible to shoot if it were your Shooting phase.
RESTRICTIONS: Until the end of the phase, each time a model in your unit makes a ranged attack, an unmodified Hit roll of 6 is required to score a hit, irrespective of the attacking weapon’s Ballistic