Fix the " Complete all phase 1 gigs" challenge. Not only are grapple melee kills bugged and only gives you credit for less than half of the kills due to "bull whip" when you FINALLY unlock the broken achievement the "serialized skin" reward does not unlock although all challenges are completed, and still remains unclaimed in for all weapon skins ( double checked) . For an entire gigs worth of work the least id least expect the reward to work, of all things...