Lol, I mwas a lv 18war/9mnk and I attacked one and got linked by about 12 other orcs. They all were hitting for 1-5 dmg per hit lol. I managed to scare a ton of low leveld people who started running off. I killed all 12 or so of them in less than a min, dumb orcs.
These things aggro when you are healing. I was had just finished camping some Wild Rabbits for rabbit hides and it aggroed me while healing. I'm a 45PLD..
The higher level versions of these in Ghelsba Outpost and Ghelsba Fort will drop randomly: Bronze Leggings Bronze Subligar
I'm not sure, but I think they might drop all the bronze armor pieces if you kill enough, those are just the three I know I've gotten off of the Fodder's.