Watched a wicked illegal formation win away vs higher Q team....

[Narf]

I hope that I get a shot at him, I'd like to try a 4-2-4 on him haha.

I'd love to see how you'd manage put 4 STs in the 3 slots available for that position, lol. One of those dumb things in the game that just puts a limit on you as a manager.

if im right illegal possession mean you just lose the % of possession of the ball , what if he play long passes and counter attack ?

You lose possession, but it doesn't necessarily mean that he's playing defensively. You will get the bulk of the chances and the game may simulate him getting lucky

It doesn't even mean that you lose possession - it's just a stat shown as 80/20 to your disadvantage, but doesn't mean ****.