you are sure they were set at high altitude? Right-click, altitude cursor top-right showing "high altitude"?
If so, alright, I must take back what I said about tank guns and so on... but not necessarily about ATGMs. I told, technically I see no reason to limit ATGMs at a given altitude. That could count as a security rule, but well, it IS a weapon, so someone getting hurt is just the aim of it. Admittedly the lower you fly it the stealthier you stay. But you have also so much chances to trip your wire in a tree or something. I don't know how the manufacturers think, but when I reflect about this, my conclusion would be that the lesser restrictions you have the more unexpected things you can do! And unexpected acts are half of the victory (can be, anyway).
But if you show me hard data saying that some ATGM manufacturers have created such restrictions, well, I guess I'll have to believe you!
After all these guys are engineers
