you should try halo2 multi again after the update all the players where mixed up for a while so the good people where playing the new players and it was frustrating for everyone. but now the levs are evened out and everyone is playing with people there own skill lev. the skilled people believe it or not don't like playing bad people because they enjoy the challenge. and if you just play for a few hours you can find plenty of people around your skill lev and start up a custom game with them.
and yes halo 3 is worth it just don't expect to be with people as good (or as bad) as you are right away it takes time for everyone to get separated to the right groups.
p.s someone said
"I wouldn't buy it just for the campaign, cause Halo's campaigns suck.I played the beta, it plays like Halo 2, I just noticed the new weapons. But I'm sure, GTA IV will dominate Halo 3. Both in sales, and game play. ^_^"
im sorry but
HAHAHAHAHA!!! that is the only reason halo 2 sold and why they want to make a movie.
and as far as GTA selling more that is just dumb.
Nothing ( movie, game, or electronic device) has beaten halo 2's RECORD setting first day. not even the expansion of WoW could beat it. it took them a full month b4 they made as much money as halo 2 did in the first day.
GTA ( as much as i like it ) dose not have a chance.