F-15 campaign,mission 2 (escort)

[Symo]

Instead of having my plane ready for take off to begin the mission in the second mission ("escort") of the F-15 campaign,i have two soviet mig-29 which begining to roll to the runway by themselves.I have tried many things but the mission is unflyable.I am so frustrated,i connot feel the enjoyment of some good missions.PLease,can somebody bring me back the pleasure of combat action !!!!!!

Thanks guys ! :((