how would i go about creating a map inside C4d

ok so im trying to make a map in c4d but is there any specific ways to go about this, also im a huge noob, how do i make a model i imported act like the terrain and let my charactor stand on it thanks

To make your character stand on your map model you would use attach colliders to it such as the mesh collider or for more basic maps (and less processor expense) a combination of box colliders.

I would suggest google for C4D tutorials as this is not really the place to ask questions about that. After a quick google I found this:

http://www.youtube.com/watch?v=ve7qcznocMs

Which teaches you some of the basics you would use to create a house. This could be applied to create a basic map with multiple houses etc.