Not sure if this is common knowledge or not but if you have someone who has done the pre-quests guild teleport you (or you can hyper TP) to "Tyrant's Castle Foyer" then you can enter the Hard Magnus map without doing any of the pre-quests. This trick is especially useful if you are planning on bringing mules or friends that haven't done the pre-quests.
https://www.youtube.com/watch?v=w2bo-r1zCXk
December 19, 2015