Pack luck based on where you live and is not random
I have been discussing an issue with an EA advisor regarding the current TOTW pack issue and he has confirmed more than once that your pack luck is increased based on the server/region you're playing in.
I find this baffling because I have friends who have some of the most incredible luck and I get shafted. My new favourite person Richik has now confirmed that my luck is based on the region and server which means that if you're on the wrong server or in the wrong region you're getting scammed. I have attached the conversation.
Personally find this is wild for someone who works for EA to admit
[CM - Edited title for CAPS]
Hey xoWoolley,
These probabilities are the same for everyone as you can find with the "View Pack Probabilities" option in-game on relevant packs.
This advisor is saying there is no individual or account "pack luck", not that it changes from one server or region to the next. The game(what they're referencing as the server) determines the odds of receiving a particular item, which is seen in the "View Pack Probabilities" option. It's not affected or influenced by an individual account.
You can see more information about this here for official details on the system. Advisors would not have any special or separate insight into how this works I'm afraid, sorry for any confusion.