confusing Artillery overload score

[Imp]

As a further note your artillery will cost a lot more than the figures you quoted.
At experience 70 one set of 4 guns costs 276 points.
You have 9 of them so that works out at 2484.
However its 1941 so base German morale is 75 but from your counter battery effectiveness the experience of at least some of your guns must be in the 80s.
I would not be surprised to find your arty is actually worth around 3000 points.

Now I have read your post properly & realise you don't have 5 tank companies just around 30 tanks & 16 infantry squads I would guess your artillery cost is close to 50% of your forces total cost not 15% or less as you would expect. That's a pretty huge discrepancy.