That happened to a lot of the tactics i found, new update and a lot suffered, the other one I love is the 3 season wall, as I call it, doing well then 3 seasons in and the AI counters you perfectly and your players forget how to pass the ball, cheers for the info, might skip this one then
If the AI would "Perfectly counter"; it would do so from the start. As it is,
a simple switch in managers, or an edit as to their prefered formations can impact things quite a bit. This is the side effect of a "game breaking tacticzzzzzzzzz" since day one. No tactic, absolutely not one, is without weakness, ever. Unless you find a way to field 20 outfield players that cover EVERY inch of the pitch. Additionally, no tactic, absolutely no one, in football, makes you consistently outperform all player ability to kingdom come.. Suddenly in-game the game seems like rock paper scissors, when it doesn't specifically try to be... not from my end, anyways. Get it "right" and your **** forwards score loads no matter what. And then suddenly, it may stop. If you don't even know how your game breaking tacticzzzz works, e.g. here, you will have no clue what's goingn on either way. Randomness galore. At least, on the odd occasion.
Shy away from anybody who doesn't explain you such, such as this guy.
https://www.fmscout.com/a-unstoppable-attacking-fm18-tactic.html Additionally, even the traditional simple switch (mid-match) to 3 forwards can expose your average exploit a plenty, as they push every single player under the sun forward, every minute of a season (which equals to thousands of interceptions with everybody pushed up). Whilst the three forwards on FM haven't tracked back behind the ball in ages. That can happen for just ten minutes.. it's typically something applied when trying to go for an equalizer etc.
Different AI managers manage matches slightly differently. They each prefer different formations for a start. Database updates could change those preferences. As could manager switcheroos (sackings, etc.) That's it. Additionally, the defensive "cracks" exploited on every release that see garbage players popping up into space over and over naturally tend to be visibly covered more by defensive tactics (keeping men behind the ball that may plug those ME inherent defending holes a bit). AI tends to play defensive tactics if it considers itself the underdog in a match, so that Burnley at the start won't go gung-ho at Chelsea (doesn't happen IRL too). The dynamics at play here tends to be as follows: The human managed team outperforms all ability, and eventually, it faces the same thing that Bayern, Barca et all do from the start (AI included) -- lots of spoil kids parking armies behind the ball. Except they do such with much worse players than Messi, Robben et all. If AI'd be clever though, oh dear.
