[Pancake]

I'm running a deathrun server and for certain maps i need to make some restrictions.
I would like to know if it's possible to modify walkguard in order to create a restriction block for all players T/CT, but so they can't shoot thru the wall, the knife detects it as a entity but the bullet it goes thru, is it possible or any other similar plugin that could create a entity wall that it's not possible to shoot thru it?