Maybe it could be considered a little OP, but if you did manage to find one rare box of golden pew pew, you would inevitably feel very lucky. It makes sense, from a personal storytelling standpoint, that most persons would presumably be packing everything they needed on themselves before they before heading out (if they even made it home). this being said, I believe the more ideal situation would be to rarely find one or two boxes of ammo (at the sizes I mentioned) that someone may have behind in their house and lowering the loose round count in structure containers to compensate. In this way, I would not consider a change like this game changing but more of a coherency tweak. besides, I do not even expect a suggestion like this to be really even looked at until more final tweaking is ready to take place. I just wanted to try and get it on the "to do" list since I was thinking about it.