Nagasaki
The Buzzard Attack Chopper is a Nagasaki helicopter returning from earlier GTA games.
Maverick
The Maverick is a helicopter returning from earlier GTA games.
Police Maverick
The Police Maverick is a helicopter returning from earlier GTA games.
Sea Sparrow
The Sea Sparrow is a helicopter returning from earlier GTA games.
SuperVolito
The SuperVolito is a Buckingham helicopter returning from earlier GTA games.