This 4-3-1-2 tactic's goals are to maintain possesion above 60%, maintain a high passing accuracy and also create a lots of chances.
For this tactic you will need this few roles assured for the tactic to be efficient:
-Advanced Forward with good finishing and Off the Ball stats
-A DLF with good Off The Ball and passing stats
-An Advanced Playmaker AM with good vision, passing, technique and decisions stats
I have been testing this tactic with the Peruvian side Cienciano. I will post screenshots with the results when I will finish the first season.