More campaign for my money. I love really long FPS games that are good. Sure, it wasn't as long as Half Life 2, but it had those endless feeling moments of fun that I didn't want to end anytime soon. The rest of the Halo's, for me, were too short. A $60 game shouldn't be beaten in a day or two, it should take at least 3 days to a month.
I once read that a Bungie employee said that if there was anything that he could go back and change in Halo CE, that he would have cut out some of the repeating corridors and other stuff to make the game shorter. I say no! No! Wrong! Bad!
I know that making a game short leaves more room for multiplayer features, that's why games should always come with two discs. One for campaign, and one for every other game mode.
Games are more expensive these days, and hopefully the gameplay time standard for FPSs will one day increase back to the way it was before MM took over the FPS universe.
Like I always say: Every FPS campaign should be as long as Half Life 2. Your thoughts?
inb4wrongforum