What I don't get about that is why do they look like Indians? And why only one has a Gun, the rest with Slingshots remind me of Alex. When she went on that rescue mission!
I wouldn't say that they look like "indians", i'd say that they're just dressed in camoflage. I think that they all have bows too. This season is set while the DI are still around, the hostiles probably didn't get a big collection of guns until after the purge.