So, in the final campaign of the new Tactical Legacy "prequel" DLC, you play two NPC (out of a squad) who would later die in the tutorial of the original XCOM 2 game. Those two characters, Peter Osai and Ana Ramirez, became so powerful at the end of the DLC that it makes absolutely no sense for them to be killed by a bunch of ADVENT grunts at the beginning of XCOM.
Also, Jane Kelly (a starting character whom you got to keep if you played through the tutorial in the main game) has the set nickname "Quiet" in the DLC. Yet she gets a different randomly-generated nickname in every different playthrough of the original game. Unlike Elena "Outrider" Dragunova and Pratal "Mox", who are also hero/story characters that have the same nicknames in every game. (I will rename Jane Kelly's nickname to "Quiet" every time from now on.)
This new DLC proves that Faraxis did not have a grand plan for all the DLC ahead of time. So of course they have to retcon everything.
Edited by ktchong, Today, 12:15 PM.