I'm not demanding anything, but you guys could update those rewards for days 3 and 5 with better or more diversified drops. As it is now, we get the same items again and again; and most of them become pretty useless past certain level.
Found a bug: When you put your survivors to collect junk, the timer usually stuck at 0 seconds and you can't assign other orders to them. When forced to do other things anyway, the game crashes and you lose the material that was suposed to come from that junk collection.