Isn't that 6* AMC his own player? I believe the opponent is the one with the 4-4-2 formation.. or?
I would go 4-3N-1-2, attacking and through the middle, mixed passing/short, hard tackle and press whole pitch... Use that DMR/MR (Duff) as MC, believe it will not make a such impact. Try to use your best players as much as you can (if you look at the pic, he is doing the same).