Do you trust a broken AI to change your att/def mentality? I never did , even in the golden era.
Although the mentality function seems bad implemented, on pes 2015 & 2016 for pc, that you couldn't change mentality, it was a big minus for me, that i don't use all 3 preset tactics, default-offensive-defensive.
Same. I've never trusted it because I know how it changes it in BAL. Which, as I stated before, makes little since in a lot of instances.
As for mentality, i mean the attack/defence level. If i set to auto, and i am on the second leg of a CL knockout match, after a 0-0 first leg and in the second leg i concede 0-1 in 5', the AUTO mentality sets the bar to all out attack ( last red), which does not apply to anything in real life. When you are the underdog team in a match, it is like a suicide to go all out attack from 5th minute, even if you need two goals aggregate.
Exactly why I had to stop playing BAL. Man I remember the day I noticed it. My team went ultra attack in a cup match only to then concede twice in 5 minutes. I'm sitting there confused at why my team is gung ho offensively and conceded so easily. To my surprise, one of my CBs was up front. We were only down 1 with 30 minutes left. Now I stick with ML where I can control it and I rarely feel the need to change it.
To conclude it, maybe it is something subjective, for me maybe it is broken, for someone else maybe it is more realistic.
By realistic do you mean the frequency of success? Because I'd argue such a tactic shouldn't ever be routinely successful and consistent success doing isn't realistic. Hence why you only see teams do it irl in very specific instances.