This is the same chopper from the end of the game, although without proper shadows it looks green.

What's weird is that Natalya is actually flying the thing. It's extremely difficult to see her in the real cut-scene in Cradle, although she is there.

It's out of character for them to put an actual character in a chopper, as even the Dam truck drives itself. It's part of the model, so you can't put another person there.