Thorn's biggest problem is that if you get tagged just once, you're at a serious disadvantage for the next 10 seconds or so. Thats straight up ridiculous for a game supposed to be competitive. Of course, Thorn isn't exactly the most op weapon ever; that title goes to Last Word for its utterly insane range and 2 shot killing potential. Thankfully these two will be nerfed shortly, hopefully this will expand the meta to include more than a handfull of power weapons to use.