I knew they were gonna use the Reach engine, but i was disappointed that they didn't even include the Halo Reach remake of Blood Gulch, that map is like, the fan favorite of the games, they really should have just completely redid the Halo multiplayer like they did with the campaign, i love how they redesigned the Mark V armor without straying too far from the original design, i like how they kept the 'cease fire' stance by looking up/down, it is just so much like the original game, they could have also made the 'change visuals mode' campaign only
343 Studios did great with the campaign, but they got lazy with the multiplayer, IMO