How about you get dragged to the main villain's lair. You break out, fight your reprogramming, and kill the villain then you call it a day.
I thought Ghosts campaign story was pretty awesome. I think the ending was just great since it would leave you hanging and you would also would like to know if what would happen for the next game. On a side idea, I think that there should be a brother vs brother conflict between Logan and Hesh, where Logan was convinced by Rourke and then they would face off one another. For a change, it would be awesome if you would play on the evil side.