Ok, I have to go back on my last post. After I played halo 3 for a while I tried two games of multiplayer. I was on a different map than my beta test, and I was a lot more familar with the different weapons. Tactics are still totally different than Campaign mode, which is a failing of a lot of FPS (Gears of War being a notable exception), but the map I played (Guardian?) was a bit more spread out and isolated, and the game I played had less people. But, I assume the big difference is that with so many players, the matchmaking was more even, pitting me against other noobs.
Still not my kettle of fish, but I didn't hate playing.
