Please expand information about Ace Combat 6: Fires of Liberation.
Arkbird
From Ace Combat Wiki
The Arkbird was an Osean high altitude spacecraft in Ace Combat 5: The Unsung War. Although it was originally used for peace, it was later used as a superweapon in the Circum-Pacific War. It was later captured by Belka and had to be shot down by Razgriz squadron.