Finished the Halo 3 campaign on Legendary the day after it came out... disappointed there is no epic battle to finish it all with, but it was fun (if a little short).

After some initial difficulties with the change in button layout vs Halo 2, I am now running about xbox live wrecking the opposition.

The only FPS game I've ever played that I thought was better than Halo was Unreal... which is no fun on a controller.... ;)