When the days of summer event launched i purchased the ahab bundle with the swordfish and crates. It showed i was getting a 5 % tier boost which was part of why i forked over $20 for just a gun. But it was only for one day. It doesnt show i have any tier boost at all and doesnt show my proggression when unlocking the purchased items. I unlocked them already but the tier boost only lasted the day.