Hi,
Is ZBrush 4R8 capable of modeling anything alone? Can it handle any hard surface like rifles, jewelry, car body, etc. ?<br>Do we need to use ZBrush in combination with other modeling tools like Rhino?<br>Can ZBrush get us rid of any other modeling packages and we will achieve great results even for complex hard surfaces just by ZBrush?<br>
I think it can, but it will not be always easy…
Traditional 3D apps has it’s advantages on some fields, like poly modeling/NURBS/splines and whatnot… If you want to do everything in zbrush, some things you’ll have to do the hard/long way… Besides, zbrush is not necessarily a precise tool… 
Good luck…