Harper is dead, CIA undercover farid will live, and farid will return to Ogun Sea.

When menendez attacks Oguanhai, farid will block the bullet fired by the traitor Salazar for Chloe (a high-skilled non-mainstream woman with code name "Kama") (needless to say, she will be shot in the heart and definitely die).

Chloe will crack menendez's network virus, which is the key to a perfect plot.

So Harper's life and death decide the perfect or dark ending of the game.