Halo 3 is probably one of the best Xbox Live multiplayer games ever. In fact, one of the best games ever in general. There's always something to do and never nothing to do. Now there are other First Person Shooters which have Campain and all the basics like Perfect Dark Zero and such but it doesn't quite mach the true supremacy of Halo 3.

In most games grenades are a separate weapon but in Halo 3 they are standard.
Most of you think "Well it's hardly realistic" and stuff but ask yourself this: DOES IT REALLY HAVE TO?
Tactical jumping, custom games, theatre and even a map creater. Does it get any better?