Highpoly made in 3dsMax + Zbrush, texturing made in Zbrush, lowpoly and maps baking made in Topogun, maps composed in Photoshop and rendered in Marmoset.
Modelled in 3dsMax, rendered in Substance. This was more modular than it needed to be. The main UV shells are overlapped, rendering unique texture details pointless.
Up to 2012+ Theoretically most of the scripts are working properly on older versions of 3dsmax. Since they are maxscripts and not plug-ins they don't have to be recompiled.