Morgan Park writes: I’ve played a ridiculous amount of Advanced Warfare in the last six days. AW has its grasp on me in ways other CoD’s in the past simply haven’t, and it’s become pretty clear why. It’s the Pick 13 system (adapted from Black Op’s 2 Pick 10, which I also immensely enjoyed). The give-and-take of the loadout points leave a lot of room for flexibility and specialization. I can go especially gun-hoe in one area, and leave another lacking for the sake of balance. My favorite thing to do in AW’s multiplayer is to try out wacky classes and find genuinely effective ways of using them. Hence, my Assassin class. Here’s the setup and why each part of it is useful.