Halo 3 is a must own game. It has everything you could want in a FPS game. It is one of the best FPS ever made and that title will not soon be taken away.
Halo 3 has online play which is an experience itself and put together with the campaign, all i can say is... wow. Online play does not get boring at all as there is so many types of games you can play such as slayer, team slayer, 1 and 2 flag capture the flag, oddball, the double exp. weekend and many others.
Halo 3 has proved to be one of the most very successful games ever. With its great graphics, storyline, easy to control game play and its awesome actual game play it tops the rest.
Unfortunately it is the last of the halo series in the FPS genre. Any Xbox 360 owner should have this game on their shelf.
10/10