Actually, as I recall, they will show the cluster graphic. Whether or not they then get confused and treat it as a monobloc AP round...
There are plenty of things in this game engine that just do not work in "edge" situations. The original MBT code appears to have been a total kludge on top of the original SP (WW2) code. The entire code needs throwing away, and a fresh start made on a completely new engine (for the future, if it ever happens
. That would be the only way to get rid of having tube ATGM treated as a second weapon slot etc.
Cheers
Andy