Now I don't know much about Riley but from what I've heard, he's a dog that helps you out on missions in campaign. Well CoD has a nasty history of killing off anyone they want in the campaign. Now here's my theory: Riley will become your friend. He'll save your life once or twice throughout the campaign and become an awesome partner. However, somewhere among the last three missions something is going to happen to him. You'll be in trouble and right before you get shot or whatever, Riley is going to jump in to save your life at the expense of his own just like in MW3 when Yuri saves Price from Makarov. I can just tell something like this will happen. I'd rather not have Riley die but I think he would be the first character I would actually miss from the entire CoD series apart from Resnov from BO1 (Sorry Soap but I just didn't give a Sh*t when you died in MW3).