For all the future badge hunters.. You only get exp from MAIN plot quests and repeating instances, battling enemies only gives your ninjas exp not your main char / account. You will run out of story missions you can do at level 19 < you will have to grind an earlier instance about... 15 times.
Heh med badge earned before easy badge... To any would be badge hunters coming in this is a fast one... do the first 3 battles, then blitz like... 5 times? i think 10 minutes to get 1 easy 1 med badge
I assume you mean transporting them with caravans? You'd have to be able to transport a lot, maybe 1 per morale?