Heatseeker PlayStation 2 Unlockables

Top Secret Plane & "The Big One" Weapo

To unlock the Top Secret plane and "The Big One" weapon pack, just complete both of the Pilot and Ace bonus objectives for the final mission (Mission 4.5-The Final Count Down).

"The Big One" weapon pack is the fourth weapon pack for the Top Secret plane and includes the A-SLAMR superweapon. This weapon, however, does not recharge after being fired.

• Successfully complete the Pilot bonus objective.
  Top Secret Plane (SR-71 Blackbird)
• Successfully complete the Ace bonus objective.
  The Big One (SR-71 Blackbird's 4th Weapon Pack)

Unlockable Aircraft

This guide can be use to unlock only from 1.1 Welcome to Paradise until 2.4 The Payback. Please note that the final stage is 4.5 the count down. All of those aircraft and weapon pack can only unlock by completing bonus objective.
NOTE: WP = Weapon Pack

• Complete the bonus objective in 1.1 using rookie mode
  T-45 GOSHAWK
• Complete the bonus objective in 1.1 using ace mode
  MiG-27 Flogger
• Complete the bonus objective in 1.1 using pilot mode
  Air Attack (WP for MiG-27 Flogger V2)
• Complete the bonus objective in 1.2 using rookie mode
  Multirole WP (for Mig-31 Foxhound V2)
• Complete the bonus objective in 1.2 using pilot mode
  M-27 Flogger V2
• Complete the bonus objective in 1.2 using ace mode
  Yak-141 Freestyle
• Complete the bonus objective in 1.3 using rookie mode
  F-16 Falcon V1
• Complete the bonus objective in 1.3 using rookie mode
  F-15 Eagle V1
• Complete the bonus objective in 1.3 using rookie mode
  Rocket Attack WP (MiG-29 Fulcrum V2)
• Complete the bonus objective in 1.3 using pilot mode
  Cluster Bomber WP (F-16 Falcon V2)
• Complete the bonus objective in 1.3 using ace mode
  MiG-31 Foxhound V1
• Complete the bonus objective in 2.1 using rookie mode
  Long Ranger WP (F-15 Eagle V2)
• Complete the bonus objective in 2.1 using pilot mode
  F-16 Falcon V2
• Complete the bonus objective in 2.1 using ace mode
  MiG-31 Foxhound V2
• Complete the bonus objective in 2.2 using ace mode
  Circuit Breaker WP (F-117 Nighthawk)
• Complete the bonus objective in 2.3 using rookie mode
  MiG-29 Fulcrum V2
• Complete the bonus objective in 2.3 using pilot mode
  F-15 Eagle V2
• Complete the bonus objective in 2.3 using ace mode
  Multirole weapon pack (SU-27 Flanker V2)
• Complete the bonus objective in 2.4 using rookie mode
  Naval Fighter WP (MiG-29 Fulcrum V3)
• Complete the bonus objective in 2.4 using ace mode
  Circuit Breaker WP (F-22 Raptor V2)