Hello, so to help my map I need to know how to make stairs and ramps (to make more floors), broken doors that act as windows (like in Kino Der Toten), and mounds of rubble that can be found in most official maps.

Thanks 

Hello, so to help my map I need to know how to make stairs and ramps (to make more floors), broken doors that act as windows (like in Kino Der Toten), and mounds of rubble that can be found in most official maps.

Thanks 

Stairs- use brushes to make steps, self explanitory

Broken doors - Use the clipping tool to make cuts in wall, look up tutorials for this, usually refered to as detail made easy. check Yi

Rubble - Make dirt patches and use models in misc--> model to create rubble