go to the first white dot on ur radar one of ur friends will count down from 30 when gets to 2 fire ur missile then go to the next dot

Oh, man, this is so easy. First pick a plane that is stable at low altitudes, has good turning, and has good accelleration.

When the mission starts, fly full speed to the white dot on the radar, when you get there you will here your friend over the radio count down. If you get there to early you should fly in circles until the count gets down to about 15 seconds (make shure not to cross the green line on your radar), then fly VERY slowly towards the target so your just out of range, when the count gets down to 5 you must be in fireing range. You must destroy the target within 1 and 1/2 seconds of the count reaching zero.

After the radar is destroyed move on to the next line, the distance between the radar decreases as you go so you have less time to get to the next target, be quick. After you get though all the radar lines be shure to attack the transport planes on the far side of the facility first, if they take off and get away, you lose.

If you have any other questions about Ace combat 5 let me know!

It's pretty much everything cbale2000 said, but if you want to save all your missiles for the 2nd part, I would suggest using an XAGM, LAGM, LASM, or RCL plane. But if you're using LASMs or LAGMs, make sure you have the radar dish targeted, and not the control center.