Unreal Editor 4 to Blender 2.70


My problem depends on simpler 3d character editing especially Jazz Jackrabbit Kismet edition.Maybe I’m inexperienced 3d artist and programmer without makehuman application,but I don’t think it’s very difficult process.How do I make smoother Jazz Jackrabbit 3D subdivision surface of maps and characters from Blender to Unreal Editor 4 and vice versa?