For Halo 5 Guardians, I would like to see some more variety in the missions and what your doing in these missions. Maybe have levels where you are travelling in space (not in space crafts but actually floating in space), or having battles on or underwater, or getting lost in an jungle/forest and having to find your way out (without objective markers please). But I honestly don’t want to see escort or defend missions or at least minimize them. One more thing but off topic, bring back friendly AI in some form and make them more useful than they were in Halo 4.
So that’s all I can think of. What kind of awesome mission or level ideas do you have?