Hi All!

This afternoon I am playing first round cup vs a 4 2mc 3 1.
I am reading on several threads to play 442 classic vs this formation.
But Ive alwasy thought, if the opponent plays with AMs I need to play at least 1 DM...

So my question was, why would 442 classic be the best option vs 42mc31?
I dont understand the logic behind it

Thanks!