How funnnn is HALO 3?

[MAMBA]

I'm thinking about buying it but before i buy it i want to know why its so fun. THANKS

 

[Dragondeka]

Halo 3 set the standards for all xbox online play. the campaign was great. but what makes it the greatest game of all time is that sometimes, on weekends, if your lucky and you downloaded the free heroic map pack. you can play GRIFBALL!!!!!!!!!!!! CATCH THE DISEASE THAT SWEEPING THE NATION!!!! seriously, i recomend that you buy it, its just a all around good game. and grifball makes it that much better. i moved onto bad company, but during grifball weekend thats my game of choice