Are there any possible way to make vandal skins show up in my store?? I want to get Reaver and Prime vandal, but my daily store doesn't let me buy those skins!!

Am i the only one experiencing it that but whenever i start the first challenge, always first 4 bot appears on left, 5th little left of the mid column and 6th right side of column. I stopped counting after that. I wonder is it just mine ed...