I would like a utility feature instead, maybe bullets can pass through enemies and when they do they provide a stackable weaken effect on them? So aiming down the weapon's sights will allow you to "Paint" targets for the weakening effect and hip fire will allow ease of use for honing healing bullets. The ideal use of the weapon type is to basically to dip into a support team player. This feature will avert you from damaging enemies and place you into that role further by not only healing but also provide strategic damage boosting on specific targets.