Its range is around 7000-7500 when targeting normal aircraft, and 4500-5000 when targeting stealth-designed aircraft (UH-80, AH-99).
How about if the targeting system is a bit more sophisticated?
~7500 for planes,
~3500 for helicopters,
~2500 for stealth helicopters, as well as reduced targeting capability in cloudy conditions.
Sound reasonable?
It is close to base to facilitate approach by vehicles.
Taking out the Ammo truck (1 hit from a tank) near it does reduce its re-arm rate.
Perhaps some adjustment so it finds a position between the base and the AO would work well with tightening the range?