I have just received my halo 3 game today and started playing this game , and I have to say that this the best halo game out of the three. The cutscenes and graphics are amazing, also the levels are alot longer and more challenging than previous games.
The HD graphics really bring out the detail of the environments and master chief looks extremely detailed in HD.
If anyone has an Xbox 360 or is buying one then this game must be your next buy. It was worth every penny.
I give it a score of 10/10