I don't know why it took me so long to get back into the Halo franchise. I played the first two and loved them, then when I bought my 360 and it came with Halo ODST and I wasn't impressed with that. I finally decided to give Halo 3 a try after years of not playing the franchise.
Man I have been missing out. Playing this game made me fall back in love with that franchise. You pick up right where Halo 2 left off and it has plenty of action and all the classic fun of previous games. Took awhile to get used to the controls and how to drive the vehicles after years, but wasn't that bad. If you want to give the game a try I recommend starting with this one first.
Man i finally have my hands on my favorite FPS after selling it a while back, everything about this game is awesome, Co-op campaign, Multiplayer, Forge etc.. i recommend this game for anyone who likes the halo series, Cops n Robbers good times.