You we’re out in Marley to get Eren back. Until you see a big explosion happening at the other side of Marley.. it was like a nuke, and you see the battle ships in that explosions and burning. You then fly over their using your ODM gear. once you reached their you see the colossal titan. The explosion caused a lot of damaged and killing Marley citizens.. Steam appears behind from the back of the colossal titans neck, then Armin comes out from colossal nape

He looks at you in shocked