Three protagonist characters from the video game Skies of Arcadia (2000) (Skies of Arcadia in US) make an appearance in this game. Vyse and Aika appears as recruitable soldiers by the name Vyse Inglebard and Aika Thompson while Fina (though her name was never mentioned in this game) appears as the Medic to assist on evacuating fallen allies.
Here, have a couple!
During the Chapter 14 cut-scene called "Awakening" where Faldio uses the Valkyrur's lance to awaken Alicia, the subtitles were incorrect because it did not match Faldio's voice dialogue. The subtitles reads, "Awaken, Valkyria. Your foe aims to rob this land of peace... Kill them all!" The correct subtitle would've been, "Arise, Valkyria. Your adversaries want to bring a war to this land... Kill them all!" as Faldio would say that for the voiced dialogue.