Facing a total weird formation

Just wanted some advice regarding the following formation:

ST ST ST
AMC
MC MC
DMC
DL DC DR

It looks like a highly offensive formation based through the middle. 31213? I've just never seen it before.

Thinking about a wing oriented formation without sacrificing the center? Maybe a 4141 with red arrows on ML an MR playing normal mentality, normal tackling, down both flanks with mixed passing while pressing my own half?

Or a more offense oriented version? 361 3 DC's, 2 DMC's, MR, ML, 2 AMC's and 1 ST. Arrows on both AMC's to support the ST, attacking mentality, pressing the whole pitch, short passing, focus passing mixed.

I wonder what you guys would suggest?

play out wide while absorbing his mids with your own CDMs. his SBs shouldnt be able to absorb wing attacks wells
CDMs are overpowered in this game

Thanks, I will see what I can come up with and I will post it

Alright, so the first leg I have a played a 3151, that worked really well. I was able to beat him 6:2. Second leg I have the "original Cattanacio formation" and was able to beat him 1:0.

Hi

I need help to beat this formation 31213 ...... please advise. Thanks
DC DC DC
DMC
MC MC
AML AMC AMR
ST