As a guy who usually plays COD for campaign and rarely plays open world multi-player ( aside from Zombies ) this is definitely difficult but I'll eventually get used to it . I just feel campaign shouldn't have open-world missions . Like what's the point of having different modes of play in COD then all of a sudden combine them ? Makes no logical sense . Just keep the modes separate . But I must admit the new Zombies is one of the best I've ever played there's no denying that . The size of the maps ( and there's only 3 so far likely way more to come ) is epic .