Do you wonder where the weapons are. Well here is the pattern for the weapons. The pattern goes as followed. Week one is the only one day out of line to get a weapon. Goes as followed. Look at the day (or week number) if it's a multiple of three and you add one then there's a weapon. Here's an example it week 34 take 34 divide it by three and you get a remainder of one so there's a weapon that week. Good luck finding all of them. They are Very usefull.
1, 4, 7, 10, 13, 16, 19, 22, 25, 28, 34, 37, 40, 43, 46, 49, 52 (if there is a 52nd week) These are the weeks that weapons show up on.