Re: Issue with aztecs discovered
"Aztecs discovered" means some non-Aztec faction (pirates\rebels?) have got a unit in that area designated to trigger that event. This area shouldn't have any pirates or rebels just because of that. I think that is set in the descr_regions in the hidden resources line. Due to the nature of that area (jungle) you will not that unit even with fow disabled. You will have to disable fow before the turn that triggers it - that way you might see the unit while it moves (set "follow ai" as well)