Yep, also creating enemies so good that you have no chance against them doesn't require any advanced AI, that exists already, just make them detect you quick and have an aimbot, several games do stuff like this already.
What i want is an AI that copies different human patterns for combat, so each enemy is unpredictable, this is what makes multiplayer combat games so much better than single player ones.
Stalker and Dayz just to name a couple "survivals", after a couple hours you know how's the enemies going to react in the first one and which routes they'll take to try to kill you, while each encounter in Dayz, or in ARMA game etc is completely different.
TLOU and Stalker are a couple games famous for their combat, i liked it, but yes, it's extremely predictable after some time and you can see the same patterns so easily, if AI could help change that, it'd be a revolution for me at least.
Same goes for racing games, i prefer playing offline chilling, but once you are in a race, in Formula 1 for example which has the best AI in a racing game IMO, it's still too boring compared to multiplayer (there are some kamikazes here, but i haven't found many tbh)