User blog comment:BFBooster/Still a noob/@comment-26464987-20151231161856

bestie, ultor,haile,elimo,

^focus on those 4 and thats all you pretty much need. Everything else, you can level up over the duration of the game.

After those 4:

Quartz(HoT)<-you'll need this for high end content,Aurelia, Griff, from there its really up to you tbh.