Master 1 Made easy
Works for all factions
This glitch is not on of specific percent but I recommend getting to 99% or evemn 99.99%
Then accept the mission where you must go to Gyuwan Cave. It is the mission at 111 that gives 6%. Check the mission Guides to see which on.
Once at 99.99% do the misison can claim your Experience you will get 60% since all missions are 10x.
Meaning you will be M1 and 60%.
If you are as daring as me you will get to 112 and 100% then do it.
Note: This works for all factions