I am facing a 3-1-2-3-1

-------ST
AML---AMC---AMR
----MC----MC
-------DMC
DL-----DC----DR

He is weaker than me, its the second leg of the semifinal of the Champs, and i wanna beat him! On the first leg i won 0-2 so i have a nice advantage, but he can cause some harm with this (specially if he goes hard attacking).

Probably a 4-1-2-1-2 Narrow diamond can be a good counter (attacking through the middle), but not sure. Usually i use a 4-5-1 V style, wich may work, but i think i may need an extra punch in defense... maybe 4-2-1-2-1 with 2 DMC and 2 AMC? That should give me good possession, attack the centre where he is weaker and strong defence on the centre and sides... this shall come with short passing centre, own half, def ment, counter may be on... What u think?