I created a house in blender which is a big cube with the upper face intended and pulled down back to the ground. The floors are other boxes and windows and doors are cut out using a boolean modifier. The problem is that the character controller from the Unity standard assets seems to get stuck between the floors and the walls. I have seen that counter strike maps are mostly not made out of cubes but a lot of planes put together. Is that the proper way to model walkable buildings?