If you spawn a trigger_radius and set the contents, it will become solid. Only downside seems to be that the player's aim will wobble a bit when ontop of it. The code below is ALL that is being used to spawn the collision, no fancy models or the likes.

level.weaponboxCollision[i] = spawn( "trigger_radius", ( 0, 0, 0 ), 0, 70, 30 );
level.weaponboxCollision[i].origin = placement.origin;
level.weaponboxCollision[i] setContents( 1 );

Videos of it in action:
http://www.xfire.com/video/3bed3f/
http://www.xfire.com/video/3bedb2/

Really nice! Going to try this :D

hi,

i have tried to use your code on a vehicule but it doesnt seems to works with? have you ever tried to use your colision tips with vehicules?

Is this possible in CoD2?

I've already posted about that months ago..
http://modsonline.com/Forums-top-119748-0.html

id say that the only thing that isnt diffrent about your scripts are setContent(1); wich we all know is almost no collision, its a tiny little collision depending on what the model is. but what Xylozi is doing is showing that a trigger_radius will work perfectly and i like that good job.

Setting content 1 on the script model only creates a small collision sphere on the models origin. It only works well creating a separated radius trigger and setting this content to 1. There you can adapt the size of this sphere.

P.D.: Oh liltc64, I didnt refresh the page so I didnt see your comment. So yes that's it.

For the purpose of SP vehicles, I posted a tip on how to get collmaps working properly:
http://modsonline.com/Forums-top-118267.html

generally speaking if you want to spawn/move collision around, I would recommend a script_brushmodel with a clip texture of your choice. Get it through script and make it nonsolid:
box = getent ("clipbox", "targetname");
box notsolid();

then when you're ready
box solid();

obviously be careful that no AI are in it when you do this, bad things could happen =)

Alternately you could move the box by just changing it's origin.
box = getent ("clipbox", "targetname");
box.origin = box.origin +(0,0,-300);

This moves it down 300 units (on the Z).

Then when you're ready, move it back up.
box.origin = box.origin +(0,0,300);

You could store the default origin in a variable if you like. So at the start, before you move it:
default_pos = box.origin;

Then when it's time to return the box to it's original place:
box.origin = default_pos;

default_pos simply stores the x,y,z of it's origin at that time. This would be the same origin in radiant.

Im modding for MP, and there is this known problem with the collision...

As far as I know, there is no way to spawn a decent collision for spawned models on CoD2 MP. The functions setContents(1) and solid() dont work to spawn the respective collision of a xmodel. That's it, so Brax is not right in his several posts he did denying this.