Grand Theft Auto: San Andreas/Air Raid

Zero's enemy Berkeley is attacking Zero's towers with RC planes and helicopters. You have to use a minigun to defend them for 3 minutes. Focus on shooting down planes and helicopters in the distance and make sure that they don't get close enough to drop bombs. Sometimes he'll tell from where they are coming. Eventually they'll start coming in groups, focus on the most close airplanes not much on the group (if there are airplanes that are closer of course), the group is so tight that can count almost as one.

Rewards

 * Cash: $3,000