For specific tactical help on these late-game areas, you can consult comprehensive Guide and Walkthroughs on GameFAQs or IGN .
: Progress through the ruined city of Osgiliath and defend the White City during the Siege of Gondor. Lord Of The Rings The The Third Age - Disc #2
: Participate in the massive field battle against the forces of Mordor and the Witch-king. For specific tactical help on these late-game areas,