I just got completely pwned playing my first game on the Halo 3 Beta.
I guess not knowing the controls, not knowing the map, not knowing the weapons and not playing in months is a bad thing. it also didn't help that the rest of my team only scored 10 points.
there seems to be some issue with the FOV. after just one game I found that I had a headache. I'll have to check the settings to see if there is anything available for HDTVs. it might have something to do with the fact that I'm using the default settings on a widescreen HD.