stop projectiles but don't block bullets or blast?

Hi guys, im using some metal grate for a walkway in my map and i want it to be realistic for fair gameplay sake. its in my opinion that the gaps in the metal are logically large enough for bullets to pass through with very little chance of ricochet. however a missile arrow or large projectile will very obviously be stopped. but blast radius will still pass through.

ive experimented before with wall thicknesses and i know at a certain thickness, explosive radius passes through. but im not sure how to allow bullets through aswell.
does anyone know of a solution to this conundrum?
thanks

 

The grate material on 2fort's dropdown near spawn does what you're looking for.

 

yes its does allow blast radius through but as memory serves it does not allow bullets through.
which i do need it to allow bullet pass-through.

If im mistaken then it must be something in the VMT
which im not entirely sure how to get it.

 

Alright am I understanding this right, you want a wall/floor that's solid to players, but want bullets and projectiles to pass through?
If yes, then make it a func_brush set to not solid and then put a playerclip over it.

 

mostly. But i can now see the misunderstanding. i want the brush to block the projectile, but allow blast damage.
for summary:
Allow bullets to pass, don't allow rockets/stickies/arrows, allow blast damage from impact with brush.

 

Just a heads up, generally in TF2 grate/mesh surfaces don't allow bullets or blasts to pass through them even if it would make sense for them to do so in real life. You may end up with with confused and angry players if you introduce real-world logic into your map which contradicts established gameplay convention.

 

I'm pretty sure any material with "%compilepassbullets 1" set will act like this.

 

thanks for your input @Jeff Magnum
though my map breaks a lot of conventions requiring players to think outside of normal so it would be fine in this circumstance. as the way i made the map is if you can see through it you can shoot through it (glass being the only exception)

i do otherwise agree. but since the mode of the map is to break away from that thinking, it should prove to balance the gameplay. for example. areas that give a significant advantage will become balanced out because you can get shot in the foot for camping out.