I have to ask this question because I noticed this is very divisive. I personally love every Bungie Halo campaign and Halo 4s. But so many people seem to despise certain campaigns. Some people think CE was too simple. Some thing 2 due to its development was a rushed linear mess. Some think 3 was a horrible finale where not much happened. Some thought ODST was pointless as a game. Some thought Reach was despicable for reconning a book. Some think 4 was a fanfiction love story that broke Halos tone. And we don't need to talk about 5s. My point is, I want everyone to post here their least favorite Halo campaign that isn't 5 and in depth describe why.