Hey there Pravado, thanks for the answer. Sorry for the weird terminology I am using, it is actually an Spanish translation from "secundario", it means the user who does not activate their console. So they need to play from the account where the game was bought. I also think they were called "resells" here. The primaries slots are safe, because they don't need to log to the account were the game was bought.
For HFW the difference was that it was the Deluxe Edition, but I am pretty sure we were able to play 4 people at the same time. However we will be doing more testing and report anything we find.
In a side note, maybe you could think that it is a very cheap strategy, but we are in a Country with a terrible exchange rate, nowadays our currency it is worth 1/5000 one USD. That make games very difficult to afford over here
Regards