in this case, You can call my proposed formation half hexagon half 4-4-2 classic, as you still have 1 AMrL (R), beside the 3 flat midfielders, and yes 4-2-2-2 hex shall be the best choice but not safest one since your opponent plays with the flat 4. Let make it simple like: use 4-4-2 classic but with 1 winger upfront (without arrow). Clear now?
For centre attack, as your rival uses 3 centre defender. It is ok for 4-3-1-2 but not the best choice. as amc got block from middle dc and 3 Wide mids seems to get lost with the flat 4.