if you read careful his post you will see that he use IRAI - and because of that he has concerns about evading... i know you like vanilla because you think is more immersive than to install mods... but in topic with spoked aboutt AI after IRAI and that has nothing to do with vanilla - so you cand just dive in your game but for sure he must to use some good evasion tactics
EDIT - i am not old to SH series - i played only sh5 but i think that the game with the all mods made in meantime is a playable game