AUSPEX SCAN

Use at the end of the Reinforcements step
of your opponent's Movement phase. Select
one Adeptus Astartes Infantry unit that is not
within Engagement Range of any enemy
units. That unit can shoot as if it were your
Shooting phase, but its models can only
target a single eligible enemy unit that was
set up as Reinforcements this turn and that
is within 12" of their unit when doing so.