Over at reddit.com/r/aurora4x we've been discussing this topic and have reached an impasse. Has anyone done the testing or has Steve posted the answer back in the mists of dawn to this question?
We have two WH4 missiles hitting a target at exactly the same location. My understanding is that it will look like this:
Kazuar01 says that it will look like this:
My understanding is that since the missile damage template is an inverse pyramid, it cannot create a two-layer deep column that is exactly the same width but Kazuar01 says that it does because VB6 does not calculate hits damage-point per damage-point but rather just applies the template and the damage "drops down" if an armour block has already been destroyed. At least that's who I understood his post, apologies if I am misrepresenting him.
https://www.reddit.com/r/aurora4x/comments/8cunsj/how_do_multiple_strikes_against_armor_stack/Is where the discussion originated.
There's a post by Steve on the C# changes thread that says how it will be in the new version but it's bit unclear how it was in vB6:
http://aurora2.pentarch.org/index.php?topic=8495.msg107125#msg107125 hence this post.