You need to google HEADSHOT. Ranges are the best PLrs in the game! It would be to long for details.. But at sometime in your 40s you can start putting AAs in Head Shot.. this allows you a good chance to insta kill lower level humanoid mobs, light blue/green cons. But there are places to do this where you will be killing them so fast, you will rack up AAs like crazy and at higher levels you can PL players. A lot more to it though, read up on it.