Fire Blade
Long distance shot
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Use the sniper scope to zoom in on distant enemies, then shoot
them with the unguided rockets or cannon even without a lock.
Surprise kill
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Stay below a hilltop, hiding from enemies, rise up, fire a few rounds,
then dip back down to avoid return fire.
See enemies easily
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You can also use the thermal scope during the day to clearly distinguish
vehicles
and soldiers.
Saving missiles
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Shoot fuel barrels and other explosive objects that are next to targets
with your cannon to get extra damage without using missiles. Save your
guided missiles for other helicopters.