As much as I want to play it, I can't. I all ready have too many games that I can't even stop playing as is. It will just turn into another game that sits on my HDD and doesn't get much attention anymore because of the fact that no one plays it. (Halo CE is a prime example )
Yes I am playing Halo 2 and I also have played its first variant. I always like to play such kind of adventurous games and Halo two is most favorite among all.