SUPPRESSION FIRE

Use this Stratagem in your Shooting phase, when
a WHIRWIND model from your army is selected
to shoot. Until the end of the phase, each time
that model makes an attack with a weapon that has
the Blast ability, if a hit is scored for that attack,
then until the start of your next turn the target
cannot fire Overwatch or Set to Defend, and
cannot be selected to fight until all eligible units
from your army have done so.