I haven't done my Epic quest on my Mage yet. I'll log on now and do it and give you the info on the mobs.
Will edit this post
Edit 1: It seems I haven't even done my Lv25 Epic. I may be a while -.-
Part 1 of the quest requires you to kill 15 WarEdge Orc Legionary Soldiers and 7 WarEdge Orc Squad Leaders. Part 2 of the quest requires you to kill 15 WarEdge Orc Warriors and KibaTul. After that is the item collecting (90 Gold Apples, etc).
Here is the mob locations on the map: