ok , some tips for your case
- As this is a critical game, you must go back and check his previous games.
Is he always using this formation ?

- A weaker (in q) team than yours, 90% would set defensive mod
- a defensive mod many times combines with counter attacks
- When I see that opponent doesn't have a "between" line (DM players) I use long pass
- This is deadly when it works

So, if I can see right (it's not complete your images), I would use 3DC-1DMC in my defense and also set defensive mod with counter attacks.
If you won the first leg 2-0, why not playing defense and let your oppo exposing his team ?

Even if I 'm playing vs weaker teams, I prefer to play def/counters. Many times it's really "deadly" (more than playing hard attack).
and you can score a lot of goals
In many things the philosophy - the reaction/calculation of the game, is very different than real football.

check here for example (def/counter scores)
http://forum.topeleven.com/top-eleve...-ready-22.html , #219