Welcome to Civfanatics and to GOTM Scipione!
I'm not sure but it sounds like you might be referring to my GOTM35 game.
Click here for my GOTM35 "spoiler1" post which includes a description of my opening moves and a picture showing early development. If you'd like even more detail to learn exactly how an early settler factory can be produced on this map,
click here to download a copy of my "QSC timeline" for the game. The QSC timeline includes details of every move made for the first 80 turns, so using it you would be able to play through the same opening sequence if you want to try that.