narrow diamon isnt realy working.....
the 4-3-1-2 formation is almost unbeatable there isnt ANY counter formation against it.
Narrow Daimond and 4-5-1V vs 4-3-1-2 have 50%-50%
i did realy long research and watched guiides for hours.

this is the results:
against the formation you have to get DMC and 2DC DR and MR
team mentaly: regular or defance with counter attack

if my results are wrong i will be happy to hear any other suggests