It's a random drop You have not earned a thing. I have played since launch ("but your gamer card says.... " Shut up that's my new character) and got the icebreaker for the worst game of control I have played in a game I was only in for about 2 minutes. Shits random. You know what makes the icebreaker suck? Elitist dicks that make me ashamed to let my team know I have it, because I I don't want to be seen as, well, a dick.