Does anyone play Halo seriously now? It seems to have fizzled out somehow, especially the serious gamers and clans. I'm still running a small clan that makes machinama (for those of you that don't know, that's videos made with games). However I'm getting worried that gamers are being drawn away by fancy graphics and not necessarily what's important, good gameplay.
What's great about Halo is the sheer diversity. A huge variety of game modes, well designed levels and a great gameplay system. Some complain that 16 players isn't enough but the game works on many levels. It moves from a tactical game when you have 2-6 players to a frantic frenzy at 10-16.
Halo was groundbreaking on the Xbox, featuring creative weapons like games like Quake and Unreal Tournament. However also leaning towards realism with a weapons limit of two.