Luckily I played Halo 2 before Halo and as a result I found it enjoyable. Halo was a lot of fun. I enjoyed the story as it was a rip off of a few differnt SCi FI storys I have read although I'm sure Larry Niven would like a royalty check. Halo 3 was fun as it compleated the story arc but it was dissapointing espeically in respects to AI which felt horribly dated.I enjoyed it but I traded it in on Mass Effect. Good Trade.