i suggest to make hard, linear quests, which allow to character with 11% fa have 1-3min cd and ability to heal 100-200 hp per time.quest can give perk, maybe perk can be named *medic* or somehow like this.quest can consist from walking, exploring, alot-cash-including part, gathering and other.for example in wow is possible to lvl up, gear up up to 50+ lvl just by doing quests (which include gathering, killing, hunting, exploring, etc)