Level 50 Efficient Tactician, just got my last 3 challenges that unlocked skins (crouched assault rifle kills, the quick draw pistol kills, and the revive a team mate). Feels good I'll tell ya. Now I can start gaining mad bad ass rank, while farming the rare skins.
TLDR #blogfaqs #36chambers happy 20th #wu-tang 4 the children --- "Woah, Dylan, slow down. That sweat suit is not for sweating. If you take that crushed velvet on more than a brisk walk it'll fall apart."