Halo 4's multiplayer sucked, but the campaign was ok (even though I personally hated the story). Spartan Ops was cool with friends. Halo 5 has the opposite problem. Multiplayer is fun (even if it doesn't favor joining matches by yourself), Campaign was ok but nowhere as good as the advertisements made it out to be. Also no multiplayer co-op outside of campaign or split-screen (which hardly matters for me).