If you're wondering how to get through any of the 3 Kamael Class Change quests, look no furhter.
Certified Berserker (By me):
http://lineage2.stratics.com/content/library/quests/index.php?id=15240
Certified Arbalester(By Elliebelly):
http://lineage2.stratics.com/content/library/quests/index.php?id=15242
Certified Soul Breaker(By AshaneFB):
http://lineage2.stratics.com/content/library/quests/index.php?id=15241
Enjoy! :)