Whats everyone doing once they open it…Campaign or multiplayer?..I’ve done the samething with every Halo…Campaign first! Its the heart of the series!! 5 more weeks!!
Campaign definitely
Its writing in the Book Of Gamer’s,that you have to play Campaign first before anything else.If you don’t follow the rules,the gaming god will come to your house and break your console…and your finger’s.
I always do campaign first but I don’t want to finish it all in the first day so if I can control myself I’ll do a couple levels of campaign and then jump into MP. Unless I’m playing co op then I might finish all of campaign on day one.
Nothing, unfortunately… I got a test on the 7th of November… Ordered Halo 4 in such a way that it would be delivered at my parents place, so I wouldn’t be tempted…
The knowledge of being able to play it approximately a week after launch is already killing me 
Campaign. Easily.
> Whats everyone doing once they open it…Campaign or multiplayer?..I’ve done the samething with every Halo…Campaign first! Its the heart of the series!! 5 more weeks!!
Forge!
Campaign, solo legendary. I find it beats the stupidity out of you real quick and molds you into a precise killing machine. A good stepping stone to multiplayer.
After that, probably Spartan Ops solo legendary. And then finally I’ll renew my gold and proceed to bathe in the blood and tears of my opponents.
CAMPAIGN for a few Levels… Then Forge. Then MM. Can’t wait to Play some SWAT!!
Campaign.
Obviously campaign! And I’ll be beating it in one sitting, if possible.
I will be going to do customs first I know I should be doing campaign first but hold on hear me out. I’m going to the midnight launch and getting halo 4 then I will come home play one or two custom games and then go to sleep. Because I want to play the campaign all the way through in one sitting but I don’t want to be half asleep when I finish it. I want to be fully awake so I don’t miss anything.
most likely spartan ops with my friends
I’ll do Campaign, then Multiplayer to get into the feel of things, then Forge.
Campaign.
I see these all the time and can safely say, even though Multiplayer seems to be ‘all the talk, all the time’, Campaign is always first to be played. 
Campaign.
Campaign first. Every time.
Besides, like anyone can play Multiplayer Day1. Because of no Beta, those servers are gonna crash sooo hard, you’ll be lucky if you even play Halo 4 Multiplayer Day1.
erm prob start the campaign, if it drags me in then ill carry on doin it if not then ill prob do 2 missions then give multiplayer a go 
Campaign of course.
Forge first.