Welcome to the thread! To catch up on all the info so far, read these: http://steamcommunity.com/sharedfiles/filedetails/?id=169692851Documentation covering more speculative info
Try not to post anything already covered in these.
Also, if you want to tell someone about something, DONT ADD ME, POST IT HERE.
The following is the original OP for this thread and my old theory for the images (It is wrong so try not to use it as a basis for all your theories) it is merely here for prosterity:
"As a starter, Bain's guide mentions secrets and also mentions the big ARG in Payday 1. As well as this it offers 4 odd images that apparently have a meaning. I have had a quick look through and noticed something. (This is a copy paste of a post I made on a discussion I made using a phone.
This may sound far fetched, but hear me out on this one. Looking at the 4 images at the end I've come up with a maybe OTT theory but have a look. (First image) On rats, make 3 bags of meth (alchemy and beakers, as well as 3 on the dice and book) (second image/day) Have the gangsters deceive you (mentax in Latin) out of luck (horseshoe) or maybe deceive them, take one bag and leave them with 2 (chess pieces) all within a time limit (hourglass). (Picture 3) have the person take the bag and the info all without attacking and have the same person (picture 4) possibly suicide in the bus next day or something. It's farfetched but meh. Each image could represent a different player or there may be more. Also each image has small 3 letter words. Last 3 say CGO and the first I think was BDN. These are most likely signatures though. Well, that's me done.
I would love people to look into these pictures as they DO hold a purpose."