I wholeheartedly agree. For me, this seems to be the only feasible way to make team play more appealing. Making everything harder and more scarce, as the OP proposed, sure isn't. People will simply band together in their existing groups of RL friends and murder everyone else for resources, pretty much as it is now. It would only serve to further punish lone wolfs. If we had some sort of class system (with different skins according to profession) people would think twice before shooting a medic for example. He's the one who could heal you after all, and you CANT use his stuff yourself. So there's not much to accomplish by murdering him, but there might be some gain in making contact. Similarly, even lone wolfs, skilled for survival and hunting game, could approach a settlement of players and offer some meat for trade. Afterwards, they could be off again, to do whatever they want. Sure, the group could murder them, but that would dry up a potential future source of meat.