SUPPRESSION FIRE

Use this Stratagem in your Shooting phase, when
a WHIRLWIND 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.