Help with 3 dmax maps

[DJMiki]

Hello friends,

I have a problem with the map,

The players pass through the walls and were unable to arrange it.

Does anyone understand 3 dmax and can fix this problem for me?

this is the map:

thanks for help

 

[StephanW]

Use the hide_ prefix for your map and you need to draw some collision yourself.

 

[DJMiki]

Use the hide_ prefix for your map and you need to draw some collision yourself.

How do I do that, can you help me please?