So the house errata we came up wit hto deal with this is
Replace Third Paragraph AS Pg. 76 'Air-Defense Arrow IV'
"In place of artillery attack rules, air-defense Arrow’s are resolved as standard ground-to-air weapon attacks (see Ground to Air Combat, p. 60). For targets in the Central Zone that are engaged in air-to-ground actions, treat the air- defense Arrow as if it is attacking at Short range. If the target is in the Central Zone, but is not attempting to land or engaging in air-to-ground combat, the air-defense attack is made at Medium range. If the target is in the Inner Ring, the attack is made using the Long range bracket. An additional –2 to- hit modifier is then applied to represent the improved homing capabilities of the
Arrow missiles."
with
"In place of artillery attack rules, air-defense Arrow’s are resolved as standard ground-to-air weapon attacks (see Ground to Air Combat, p. 60). For targets in the same Zone that are attempting to land or engaged in air-to-ground or air-to-air actions, treat the air- defense Arrow as if it is attacking at Short range. If the target is in the same Zone, but is not attempting to land or engaging in air-to-ground or air-to-air combat, the air-defense attack is made at Medium range. If the target is in and adjacent zone, the attack is made using the Long range bracket. An additional –2 to- hit modifier is then applied to represent the improved homing capabilities of the Arrow missiles."