You don't really got quest for Uruga/AEW maps until very late 50s... possibly 60s. It'll mostly be CP1.
As for the 60 job change. As a Fighter it was a breeze. The 3rd part is the easiest for Fighters because we have Mock to gather the mobs. And if you have scrolls and maybe an Endure buff you'll be more than fine. The mobs all hit you for such a miniscule amount of damage that... well, it makes you think it's a little too easy. :P Then again I am a full END tank. The first part might be a pain because of the poison though... but that's probably the only thing that comes close to killing you if anything.
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