I remember when Halo 4 came out they said they had to forgo theater mode for its campaign because the 360 couldn’t handle it? Well, we’re on the One now, its specs should be able to handle it, no?
Just an idea. Would be pretty cool if Halo: CEA and Halo 2:A could feature it as well. Seems kind of silly that Halo 3 is the only game in the release that has this feature when by now it’s probably the game with the least demanding strain on the system.