Top down or two stage ATGMs

[jeffreywilens]

There has been some mention on these boards that certain more modern ATGM's are designed to attach vehicles from the top down (so they should be compared to the top armor) or are two stage with the first stage designed to defeat ERA for example and then the second stage to penetrate the steel.

But is there some way to tell which ATGM's in the game (if any) have either of these technologies and how are the technologies modeled?