mmm... I remember this game, but I sold a whole bunch of PS2 and GameCube games to Gamestop like a year ago, I think it was in that batch. My brother got the best deal ever from his friend on an Xbox 360 Elite 60 gig, for 60 dollars, I think that's what we got rid of those for.
Anywhoo, I LOVED sniping on Hoth (is that what the snow place was called?) as the Republicans. DIE ROBOT DEMOCRATS, FROM A MILE AWAY MUAHAHAHA
Also, jet troopers on Tatooine was cool, I but I could never be as good as I was at sniping, so I was mostly just randomly shooting up in the air. While bum-rushing straight into their main base.
Hardest medal? Regulator wasn't too difficult, just get behind the enemy base as an engineer and draw their attention, and let whoever is playing with you kill 'em from the front. It's funny, they don't know who to shoot at and are just sitting ducks for both of you. If you can aim well.
Sooo... I guess the hardest medal would be Demo. I was terrible at using the heavy class.