First off, gonna start by saying I have no issue with Thorn (except that in terrible with it), i'm just proposing an idea. Personally, I would like to see auto rifles buffed to be more in line with the rest of the guns. Anyway, here's the idea: Make Thorn's DoT applicable ONLY to headshots. That way, truly skilled and elite PvPers won't really be nerfed at all and the 2 headshot kill is still possible, but everyone else who is using it as a crutch will have to get better if they wanna have the DoT bonus. There it is, Thorn gets slightly less good, but only in the wrong hands.