If you finished both campaigns, you don't need to do the MOX quests to see the war. But they shouldn't take too long if you just wanted to do them anyway, maybe half an hour each? Its been a while since I did them, I must admit!
I just got Red Dead Redemption, so currently guildwars is fighting with my urge to ride around the countryside on horseback, but I should still be around a good amount this weekend! Hope to see you!
