ENTiRE's 41212 Variation

This 41212 tactic gave my Fortuna Duesseldorf site 73 points in their first season in the Bundesliga.

When in possession the 41212 kinda forms more of a 343. The Inverted Winger on the left side links up with the 2 strikers to create a 3 man striker force in the box, while the right Winger on support stays outside and doesn't get into the box, ready to cross it to the far post where the Inverted Winger has a  header duel against the oppositions right back. The attacking midfielder waits outside the box for rebounds from said crosses while the Centre Backs and Defensive Midfielder form a 3 man counter attack protection.
While crosses are a thread there are also a lot of triangles formed for short passing opportunities and 1 on 1 dribbling against lone defenders.

When the opposition is in possession the team defends in a 442 formation with both wingers and attacking midfielder coming back to defend. The 2 strikers press the opposition's center backs and cover them, waiting for a long through ball.

To work perfectly you need a player on the left midfield position that is strong, taller than the average left-back, and can win a header against said left-back. He also needs to be able to finish.
The right midfielder should be able to cross but also dribble into space and beat a man 1v1, he doesn't need to be able to finish as well as the other 3 strikers. Talking about strikers, both of them should be able to finish and run, while heading isn't as important as we look for our Inverted Winger when crossing. It's much more important for the strikers to be able to finish after getting a good through ball. The attacking midfielder is the heart of short passing in the last third of the field so he needs to be able to position and pass well. Center Back and defensive midfielder just has to be average in speed and strength in tacklings since we aim to get stuck in and prevent any counterattack.

Since this tactic is very offensive you can just pull back your lines and change passing from short to long when playing better opponents. Counterattacks with 2 fast strikers are deadly.#

Would appreciate it getting tested, have a good day!