Hello everyone,
A friend of mine has run the scenario "#29: The Devil We Know—Part I: Shipyard Rats" 3 weeks ago. He had 5 players which were level 1 and he didn't have a good grasp of the rules of PFS, he thought that Subtier 1-2 would be too easy to beat, thus he decided to apply Subtier 3-4 encounters and monsters. The players have had some difficulties but none were dead (luckily) and they were successful.
According to my reading of Guide to Pathfinder Society Organized Play, this is not legal, but the chronicle sheets have already been distributed, where all the players have victoriously deserved their sheets(which they gained for subtier 3-4) as a reward, but I feel like this is not fair, so I've decided to come and ask here.
1) Is this incident legal according to Pathfinder Society Rules? Can the GM or players voluntarily increase the hardness of a scenario, where in Guide, it says:
Note: There are 3 subtiers in this scenario...
--> From what I understand this, it's not legal.
2)If it's not legal, how can we correct this mistake? Do we have to replace every other players' sheet with Subtier 1-2 ones? Or can we let it pass over for this time only?
Thanks for your time :)