Halo 3 is the culmination of everything the franchise was up to this point. The campaign feels like a action movie as you jump from set piece to set piece with excellently designed levels one after the other. The story wraps up well giving fan favourite characters memorable moments and ends the trilogy conclusively while still leaving the door open for more. The campaign maintains a level of consistency that prior games and other franchises could only dream off.
The multiplayer is more iterative than revolutionary but when your building off Halo 2 there isn't much room for improvement.
Halo 3 is a true epic that stands tall among gaming's best