People are split on the story but I think it had the right content but not execution. The gameplay is the best in the series in my opinion. It has open and immersive levels with great combat variety. You could argue reach has better gameplay and halo 4 has the best story. Still, the heavy enemies, gun balance, weapon sounds, good acting/mocap, incredible visuals(despite some low rez textures). Everyone loves the Mp but I honestly think the campaign is the best. It was also our first glimpse of sangheilios in a game.