How do I counter 3W-3-2-1?

[pvhung429]

My opponent's formation is like this
GK
DL- - - - - DC- - - - -DR

MC-MC-MC
AML-- -AMR
ST- ST

How do counter it? I usually play the 4-5-1 V-style and I'm thinking of just putting the blue arrow on the DMC and red arrows on DL&DR. Should I use another formation that has a AMC since he only has 3 defenders and no DMC?

Thank guys