MW3: Father-Daughter Relationship, complicated War story.
Black Ops II: Mujahideen Double-Cross you, Menendez convolutes everything with his sister relationship.
Advanced Warfare: Atlas double-cross you, a Politician has war for the sake of his own son and also believes in power over policy. And almost starts WW3.
Black Ops III: It's all in your head, you're dead, and this, along with Infinite Warfare, is probably the only game on this list that doesn't have a relationship, yet convolutes the plot by using Corvus and the DNI, and I even think it's a remake of Black Ops 1 somehow, in a way that would blow Treyarch's mind.
Infinite Warfare: Simple Good vs Evil, Men vs Men war story in space, no aliens, just a realistic War Story, bald man is possibly secretly Paul Weller playing second fiddle to the real head.