basic questions on armors

[Pocus]

Effectively I have not understood all, as I know *only barely* the unmodded & TDM tech tree.

Thank you JLS&QuarianRex.

JLS : I suppose that armored plating is a type of armor belonging to a mod?

QuarianRex : I have understood that EA ability do not cumulate. So what is this 40 pts discount given by structure? In your example the DD does 60 which are all absorbed. 20 comes from EA, but the others.

Also you confirm that putting 10 EA II would be stupid (it is just an example ok)? They do not cumulate really?

Also, which armor is destroyed first? EA or standard one?

Finally, does EA are really of interest? Suppressing 20 pts of damage is quite low no?

Thank you all of you taking the time to explain things.
Pocus.