Mobile Suit Gundam: Crossfire

Amuro Ray
Successfully complete the EFF campaign on the Very Hard difficulty setting, then load the cleared saved game to unlock Amuro Ray.

Char Aznable
Successfully complete the Zeon campaign on the Very Hard difficulty setting, then load the cleared saved game to unlock Char Aznable.

Fraw Bow
Successfully complete a campaign on the Very Hard difficulty setting, then load the cleared saved game to unlock Fraw Bow.

Gundam
Achieve the rank of "Warrant General" rank to unlock Gundam.

Kai Shiden
Successfully complete a campaign on the Very Hard difficulty setting, then load the cleared saved game to unlock Kai Shiden.

Kampfer
Achieve the rank of "Lt. Colonel" in the Zeon campaign to unlock Kampfer.

RX-78-2 Gundam
Achieve the rank of "Colonel" in the Federation campaign to unlock RX-78-2 Gundam.