Ben Boltons new method is a gamechanger for a lot of right-angle based hard surface: http://polycount.com/discussion/168610/proboolean-dynamesh-hardsurface-workflow-tutorial
Damn I never thought hard surface modelling in Zbrush can be a thing in professional job. I always thought about it as of some interesting thingy... not usable in game art ;p I think people are just impressed that you can make stuff like that in Zbrush because Zbrush wasn't made for such things (which is really funny…