How do you make models solid? because when I play my map I just walk right through them..

Models aren't solid by default. They need a collision box made up of brushes textured with noclip.

If it's a stock model (those that are made by Infinity Ward and are in other maps too), then there's a pretty big chance the collision is already made. In that case you will have to load your model as a prefab (misc_prefab) from the map_source/prefabs folder.
So, in Radiant, instead of adding models (misc_model) you add prefabs.

If it's a custom model, or if it doesn't have collision, you'll have to make it yourself.

Thanks.

Not to make a new topic.. How do I change the size of models?

to change a model size spawn a model (not prefab will not work)
then press N
in key and value box type:

modelscale
2

:D

liverare writes...

ty :D

noh problems :D