I'm sorry, I just don't see much need, actually. I mean, did someone follow a group of refugees around, to see where they go? They SHOULD head towards nearest town(of their faction), but you also need to take into account they may run into bandits, deserters, (rogue)veterans, pirates, war parties, etc. That would make it a bit difficult to just run to the nearest town. As to Foragers being a "confiscation/thieving detail", the first thing I thought was "to wander in search of forage or food" (from http://www.m-w.com/dictionary/foraging ). I don't know why you would've thought of a raiding party first.