Flak attacks may not be carried out by units belonging to a
formation that is marching or broken.

Q: If a formation has Blast Markers
and wants to fire its AA weapon(s) at
an enemy air formation, but the only
unit that has the range or the LOF to
that enemy is the AA unit, is the AA
unit suppressed?
A: All ground units are considered to have
an LOF to air units so all the units in the
formation, not just the AA unit, would be
considered to have an LOF to the aircraft
formation. If the AA unit is the only unit in
the formation that is in range of the
aircraft then it would be suppressed. If
other units in the formation were in range
then they could be considered valid
Suppression targets, not just the AA unit.
Note that a unit can be suppressed when
firing at an aircraft even if it has no AA
attack value.

murky bucket