Game mechanism : plan an offensive

[Amnesia]

Hello,

I am reaching a level where I try to use carefully each type of unit like it should be in the right way...I played for years in checking only the total amount of attack and defense points before launching the offensive on a ennemy position...
Since I started human versus in 2009, I learned many important things like :
-how to optimize the time use
-how to break a D/E/F position with bombing and art before attacking..

Today I was trying to make a brutal attack on a position I wanted to absolutly take to pass through a river..I got 40% of loses and about the same for the ennemy unit who kept the position..
So I wanted to ask you, what should I do regarding the different type of unit I have here ready to make an attack..
Here is the initial position and the material I have :
2 panzer div and 1 infantry div.
When I made my disastrous attack, I had the 2 panzer division attacking in ignoring loses, the infantry division in minimize, and I added 6 or 7 flight unit for air support, and also the 4 HQ for artillery like shown on my picture.


  plan attack-.jpg (Size: 496.39 KB / Downloads: 29)

Here is the global situation, on the top of the map :


  plan attack 2.jpg (Size: 340.14 KB / Downloads: 18)