one plans is called the falken it has a tactical laser as special wepens an incredeble stats (trust me i bought it)it costs like $900,000.00
all though its worth it
the best way is to keep doing the mission aces for mony

now how do u unlock it here

Get the missing parts from missions 12a, 12b, 16a, 16b, and 27a to unlock the
Falken. You must destroy the hangar of each mission. For mission 12a, follow the
river north, then go east at the fork in the river. You must be close for the hangar
to show appear on radar. For mission 12b, after taking out the four radar sites,
destroy enough targets and the hangar will show up near the smokestacks. The
one in mission 16a is between the field HQ and the airfield. Mission 16b has it west
of the river, between the airfield and oil refinery (south of the north-most river).
The part on mission 27 is very close to the gun tower, in front of the tunnel.

lol

READ THE TITLE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I think that if u get ur killrate high enough u get new aircraft

use one paticular plane and kill alot of enemies with it then i think you unlock like a
successor or upgraded version of that paticular aircraft BUT some planes dont have
upgraded versions such as the F-35C,FALKEN,etc...