Really confused by the one scene (spoilers)
Where they were down in the London underground, and just figured out Walker was the bad guy. The have Sloane on the phone, who let's Walker know the jig is up. Then the military shows up, and Sloane's like, "Yeah, they're with me. Deal with it." Shooting ensues (where it's real difficult to tell who's shooting at who). Afterward, it seemed like the military was on Walker's side, which made you think that Sloane was on his side too.
Then at the end, Sloane is back with them again.
Despite all the confusion, it was a nice touch to have Alec Baldwin die. I could watch that scene over and over.