Shadowfest3 on 07 March 2010
Well, I've only completely the campaign for Halo:CE and not the other three games. I've played some of the campaign for Halo 2 and 3 but I never had the attention spand to finish them. I think I was more into the multiplayer online with the third one to finish it. Anyways, I think I need to play through and complete them before I can say which one is more fun for me. On that note, I hope that Reach will have an appealing campaign that most will enjoy.
