I have AP and Final Round on a spear and I wont argue that its a one shot kill in the foot through a wall. I also have spray and play on it so before the patch with the way special ammo is in PVP now I'd shoot off the first 2 and run around with one bullet. Now with the way the ammo is in PVP I dont think the perks are that game breaking anymore. You just dont get enough ammo to pop off the first 2 rounds and just use your final round.