Here is some tactics
Note! You cant see if your opponent change playstyle in a game.
General Tips.
- Dont use high pressure if your opponents attackers is much faster than your defenders.
- If you play with just one playstyle, your team will get better at that playstyle, but worse in the others.
- Longballs beat continental, mixed beats longball and continental beats mixed.
- 4-4-2 is good against defensive formations
- 4-3-3 is bad against formations with lots of midfielders
- Longballs works well with many attackers, like in a 4-3-3 formation.
This tactics have worked for Sir Dicky
The tactics to the right 'beats'' the one to the left. You will of coursen need soem luck but this should work if your opponent have around the same avergae Q as your starting 11 or is worse.
5-4-1 Continental - 4-3-3 Longballs
5-4-1 Longballs - 3-6-1 Mixed (not so sure)
5-4-1 Mixed- 3-6-1 Continental
5-3-2 Continental- 4-3-3 Longballs
5-3-2 Longballs – 4-4-2 Mixed (4-3-3 Mixed)
5-3-2 Mixed - 3-6-1 Continental (4-5-1 Continental)
4-5-1 Continental – 3-4-3 Longballs(3-3-4 Longballs, 3-5-2 Longballs)
4-5-1 Long balls – 3-5-2 Mixed
4-5-1 Mixed - 3-5-2 Continental (3-6-1 Continental) 
4-4-2 Continental– 4-3-3 Longballs (3-4-3 Longballs)
4-4-2 Longballs– 4-3-3 Mixed
4-4-2 Mixed – 4-4-2 Continental (3-4-3 Continental, 3-5-2 Continental)
4-3-3 Continental- 4-4-2 Longballs (4-3-3 Longballs)
4-3-3 Long balls - 5-3-2 Mixed 4-3-3 Mixed– 4-5-1 Mixed
4-2-4 Continental 5-3-2 Longballs
4-2-4 Longballs– 5-3-2 Mixed
4-2-4 Mixed – 5-4-1 Continental (4-5-1 Continental)
3-6-1 Continental- 4-2-4 Longballs
3-6-1 Longballs– 4-2-4 Longballs
3-6-1 Mixed – 3-6-1 Continental
3-5-2 Continental– 4-3-3 Longballs(3-4-3 Longballs)
3-5-2 Longballs – 3-4-3 Mixed
3-5-2 Mixed - 3-5-2 Continental
3-4-3 Continental- 4-3-3 Longballs
3-4-3 Longballs – 4-4-2 Mixed
3-4-3 Mixed – 4-5-1 Continental (5-4-1 Continental)
3-3-4 Continental– 5-3-2 Longballs
3-3-4 Longballs – 5-3-2 Mixed (5-4-1 Mixed)
3-3-4 Mixed – 5-4-1 Continental
Use them at your own risk. But they probably work 
I have taken this from Sir Dicky's ''Taktikkdatabase'' but i have translated it
I think he have stopped playing ML, so i havent asked him yet.