I usually like to visit an encounter prior to dumping my load, of survivors that is. While I'm there I will choose Alpha as my hero and arm myself with Morgan's assault rifle. However I'm not feeling violent just yet so I'll leave the aforementioned encounter. Since you can never have enough coins, I'll take my entourage of survivors to a trading post. Many might think "what a hassle", and they would be right it is a pain in the patootie, but I'm greedy. The point of all of this is that the scavenger bonus works on safe houses aswell and my hero and weapon choices gives me the best chance of it kicking in. Then go back to that encounter with whatever and whoever you want and kill everything!