Review Scoring Details for Halo 3

Gameplay: 9.7
It is as smooth as ever. Vehicles, the Chief, they are all old friends and everything works out so fine.
Graphics: 9.7
Lush, varied and really well put together. The end sequence is as crazy as a hen house filled with fireworks and you love every second of it.
Sound: 10
The complete use of digital surround sound, the perfect voice acting, the choice of dialogue the explosions, the whirrrr of machinery, the beauty of it all, this is perfect sound.
Difficulty: Medium
Like I said, if you know what you are doing, you need to ramp up the difficulty to make this a real challenge. The single-player campaign can be beaten in 5-6 hours on normal.
Concept: 9.4
It is a wonderful piece of science fiction work that deserves all of the accolades it gets. A strong lead character wrapped around a fantastic story.
Multiplayer: 9.8
After playing the game through a few times, you may want to join the millions of people playing online, it is kind of fun. Oh, who am I kidding, the online tear is a blast to play and with all the new bells and whistles they added to the game, you may not play anything else online for quite a while.
Overall: 9.7
I said it before and I'll say it again. The Xbox 360 is the system to beat. With this, Bioshock and last years Gears of War ... well, it simply does not get any better then this.