Well, maybe if you accept that Walker was still alive at the moment he met Konrad. I believe Walker died at the first Helicopter crash and everything that is follows is just a flashback (life flashing before your eyes in your last moments) and that everything after the repeated scene of the helicopter crash, is just a illusion for Walker's mind to figure out the doubt he has about his own morale decisions. So the decision about who the shoot, is more a decision about taking responsibility for the actions Walker took in Dubai. I shot Walker, not to wash my hands of the whole thing, but because I realized that the monster I was targeting the whole game, was Walker and nobody else.
And most choices you make as the player are pretty meaningless in the end. They don't have any significant effect on the story. The only choices that matters are made by Walker. He decides to ignore his mission to be a hero. He decides to use the white phosphor. He decides the join the CIA in stealing the water. These decisions are what makes Walker his own character, but also morally questionable. We are just their being the driving force that allow Walker to do this deeds. We are, by playing this game, allowing Walker to do this.
You have no choice in this game, only the illusion of choice. Just like most other Modern war FPS's, the only difference that the you are not playing the Hero, but the villain in this battle.
And most choices you make as the player are pretty meaningless in the end. They don't have any significant effect on the story. The only choices that matters are made by Walker. He decides to ignore his mission to be a hero. He decides to use the white phosphor. He decides the join the CIA in stealing the water. These decisions are what makes Walker his own character, but also morally questionable. We are just their being the driving force that allow Walker to do this deeds. We are, by playing this game, allowing Walker to do this.
You have no choice in this game, only the illusion of choice. Just like most other Modern war FPS's, the only difference that the you are not playing the Hero, but the villain in this battle.