So I have been grinding survival the last month or so and as Infestation draws closer, I have come to the strange conclusion that every time I hit the box on exit 115's survival map. I am mostly getting the same like 4 or 5 guns every single cycle and that goes for every game. I swear I only get the same guns in different rarities or just an upgrade tool. Not to say I expect a wonder weapon every single spin, but a little bit of variety in the "Mystery box" would be nice. Anyone else having this issue?