Put a choice node next to withering fire.
Nerf withering fire by 75%+ in pvp.
Reinstate hunter modifiers in place of bell tolls, and as a choice node against hounds.
This puts marks back approximately where it was before the patch without giving it oneshot opportunities via big rapidfire/aimed shots that proc black arrows off global in trueshot. The base damage of rf/aimed/black arrow can now be tuned in such a way where they’re independently threatening and impactful outside of trueshot. You cannot buff base damage without nerfing withering fire, and if you nerf withering fire too much without providing it a choice node, the best thing to do eventually will be to just not complete your hero tree so that you retain the ability to actually cast black arrows in trueshot. Base tuning won’t fix the problem. And there is clearly a problem.