Maybe you can help me. My earlies memories of Halo2 multiplayer involved a map with two bases on opposite sides in a canyon. I bring it up only to talk about it, I know I could look up the name...

It was the first online pvp game I had played. Having 1v1s with people with voice chat was so addicting.

I remember it used to use an ELO calculation for rank so I would calculate my buddies matches when I was at his house telling him how much he would gain or lose in the current match.

Good times.