At the very beginning I would like to say that I know we have much more important tasks to deal with anyway it is only an idea and ideas are bulletproof!
The Scavengers I love you but... what if..
You have a similar tribe friends!? exciting? yes it is
I was thinking if for example The Scavengers remain fierce as they are, but the other tribe, for example Xxxxxxxxers
(in the place of Xes place anything you wish for example Wolveners, were lesser in amount, but they attack from cover. For example a player go through "huts" village, and then suddenly Wolveners, lets say they colour is blue, appear, throw some molotow coctails and disappear just to appear few seconds after at other place. Their feature would be stealth attack for example, or some mine placing on roads of the maps. When they meer Scavengers they can be friendly to them, or you pick the sword icon, and they not only attack you, but also each other.Just an idea.
Regards,
Mero - the first scav city creator (good old times)