Don't know which one it was but a few years ago in high school a group of dudes installed some Halo game on almost every PC in the school. It was pure mutliplayer, so when we had class in the computer room we would play LAN and have a team death match. Still don't know which one it was, but it was very outdated. There was that flying vehicle and the other vehicle... Don't remember the names... Warthog? Ghost? Amirite? I have no idea. Never owned an Xbox so it haven't played any other Halo game. Halo and Xboxes weren't popular at all at our school.