Thorn puts out great damage and [u]full[/u] DoT at short, medium and long range. Unlike all other primaries and all secondaries. Check. Thorn is a primary that is never short of ammo, unlike special weapons. Check. Thorn has good impact, stability and RoF, unlike special weapons which never have all three. Check. Thorn can hold 9 rounds, 97 in total (with the right gear on). It starts the game with more ammunition than all the special weapons. If it takes, say, 3 to 4 shots per kill, then you can kill over 20 people without reloading. Check. Because Thorn can be deadly with 2 or 3 shots, you don't have to stop for ammo nearly as much as other primaries and all secondaries. This keeps you moving, which is key to survival, and also keeps you away from ammo crate ambushes. Check. Thorn has good impact, stability and RoF, unlike almost all other primary weapons which never have all three. Check. When you ADS with Thorn, you still have excellent peripheral vision, which helps situational awareness. Not so with many other weapons. Check. Because Thorn competes with all other primary weapons and all special weapons, you don't have to switch weapons, which saves a ton of reaction time. Check. The bullet from Thorn touches you and you start to burn to death. If you get out of the way before you die, you are combat ineffective until the DoT stops [u]and[/u] your health regenerates, unlike every other weapon. This can take up to 15 seconds, which is literally a lifetime in PvP. Check. Thorn is OP. EDIT: Tightened it up a bit and clarified a few points. EDIT: Anyone is free to cut and paste this or paraphrase it if they support this argument.