Halo 3 is a very fun game u'll go through count less hours playing story mode or mulitiplayer saying i kicked his can.There no reason that this game isn't fun and so here's the reason why.

one: best AI

two: awesome mulitiplayer

three: awesome new weapons

four: awesome new vecihiles

five: pick or match your armor

And that's all I got. So kill every thing in sight.