The regular x-mas tree is
--------ST--------
----AMC--AMC----
-ML----MC-----MR-
-------------------
-DL--DC---DC--DR-
This person's formation is exact EXCEPT for the midfielders:
--------ST---------
----AMC--AMC----
----MC-MC-MC----
-------------------
-DL--DC---DC--DR-
The tables show that 4-1-4-1 is supposed to work against the regular Xmas tree, but I went with this and was not successful and moved my AMR/MR and AML/ML up to attack and give me a 4-5-1 V instead which was not effective either.
I was thinking of the 3-2-2-2-1 butterfly: attack the flanks and own the midfield with 6, but am seriously thinking of the 3-5-2 V.