Complete the bonus objective in the indicated mission under the listed difficulty setting to unlock the corresponding aircraft.

F-15 Eagle V1: Mission 1.3 under the Rookie difficulty.
F-15 Eagle V2: Mission 2.3 under the Pilot difficulty.
F-16 Falcon V1: Mission 1.3 under the Rookie difficulty.
F-16 Falcon V2: Mission 2.1 under the Pilot difficulty.
M-27 Flogger V2: Mission 1.2 under the Pilot difficulty.
MiG-27 Flogger: Mission 1.1 under the Ace difficulty.
MiG-29 Fulcrum V2: Mission 2.3 under the Rookie difficulty.
MiG-31 Foxhound V1: Mission 1.3 under the Ace difficulty.
MiG-31 Foxhound V2: Mission 2.1 under the Ace difficulty.
T-45 GOSHAWK: Mission 1.1 under the Rookie difficulty.
Yak-141 Freestyle: Mission 1.2 under the Ace difficulty.