The system of having guns on your back, has been rendered somewhat useless, as you can just have an item, e.g. a shotgun, and pull it out quicker than from your sholder, and not have it visible to others.
Im wondering if it'd be possible to remove, having items *In* Your backpack, attatched to your hotbar. (excluding radio's and chemlights, On the bag). It does also fix the logical issue of, a backpack is on your back, and removing items from it, (like a long rifle) without stopping for a moment, would be rather difficult.