Tips:

Tip 1:

During the arming phase, equip your Apache helicopter with radar-guided AGM-114L Hellfire missiles instead of the laser-guided AGM-114K
Hellfire II. The AGM-114L missile is specifically
designed for Lock On After Launch (LOAL) capabilities, which will enable you to fire at
ground units from behind cover without exposing
the aircraft to enemy fire.

Tip 2:

If you run out of air-to-air missiles, other weapons, such as chain guns and guided missiles, can be used against both fixed-wing and rotary aircraft. Try to engage enemy aircraft from behind cover and at the shortest possible range,
preferably just ahead or slightly behind the aircraft using a low-angle deflection shot.