DavidEnjoyed this shallow dive into XCOM 2's procgen worlds and how it didn't happen for the first. Has a link to a GDC talk for more details too.
How procedural maps became XCOM 2's biggest ambition, after Firaxis couldn't manage it in Enemy Unknown
https://www.rockpapershotgun.com/i-was-chomping-at-the-bit-to-crack-the-code-how-procedural-maps-became-xcom-2s-biggest-ambition-after-firaxis-couldnt-manage-it-in-enemy-unknown
"I was chomping at the bit to crack the code": How procedural maps became XCOM 2's biggest ambition, after Firaxis couldn't manage it in Enemy Unknown
The developers of XCOM 2 reveal the challenge of making procedural maps for their turn-based tactical game, including why they had to ditch them in XCOM.
