When Cory, AJ, Gina and Mark are figuring out who will do what job using M+M's you see a close up of what it supposedly Gina's hands and an M+M bag, if you pause it you can see that, that person in the close up is wearing a black zip up jacket but when we see Gina a second later, she is wearing a black button up sweater. It wasn't really Gina, it was obviously a double.