Better or worse then the third game?
I would want to know cause maybe I'll buy it. Is it ok to jump from the third one to this?
If I do I wont miss much of the storyline?

Better or even multiplayer, worse campaign (if that is possible)

lulz

imo campaign is so much better i dont really like the online play it seems like just any other halo game to me now its just a bunch of whinny kids but hey thats xbox live?

runonsentencelulz

this.

And the campaign is shit. Just pure shit.

1-5 stars rating in my opion
campaign_______ ***
difficulty _______ **
multiplayer _____****
armor upgrades__*****
rank system ____***
firefight _______****
forge _________*****

I see, thank you everyone I guess I will try it out.

Matchmaking is excellent. If there was one thing about Halo 3 that I hated, it was going up against a clan/team who did nothing but wipe the map with you. Some people were just SO GOOD that it totally ruined the game for others. (Such as "average" players like yours truly).

Campaign is about the same as Halo 3, though much more difficult. (Which is a good thing)