Changes

In the fictional Warhammer 40,000 universe, in which it is used highly by the Space Marines and the Imperial Guard, in their weapons, armour and vehicles. While still retaining its mythical properties as portrayed, there are even more powerful substances which border on the magical or impossible.

Used as Dreadnoughts armour almost nothing penetrates it's fragile interior.

Yet it's disadvantage is that it is very dense, this disables the function of high mobility