I haven't played the first 2 in the trilogy. I will try to though in the near future. But yeah, I had to fill in my knowledge with extensive browsing of Halopedia. There is a lot of depth but you have to seek it.
flames_of - "I think you're confusing Bush with Chuck Norris."
Wii: 80-85 Million end of 2009 (1.1.09)