I also think using :

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

or

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

I need some good advice about those 3 tactics, which should I invest in. Because if I want to use any of those tactics, I need to buy 1-2 extra players. So all kind of feedback is welcome!
Also the big question for me is that if I play with 3 defenders and add 1 extra midfielder or keep 4 defenders...